| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Asteraceae | Acanthospermum | Paraguay Bur |  (c) Taylor, Robert - CC-BY | ||
| Asteraceae | Acanthospermum australe | Paraguay Bur, Sheep Bur, Paraguay Starbur | Disturbed areas. | Native of South America. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Acanthospermum hispidum | Hispid Starbur | Disturbed areas, soybean and peanut fields, gardens. | Native of n. South America. First reported from South Carolina by Hill & Horn (1997). |  (c) Agnes - CC-BY |
| Asteraceae | Acanthospermum humile | Low Starbur | Disturbed areas. | Native of the West Indies. Reported for South Carolina by Nelson (2003). |  (c) staff, NCU Herbarium |
| Asteraceae | Achillea | Yarrow, Milfoil, Thousand-leaf |  (c) Bradley, Keith | ||
| Asteraceae | Achillea ageratum | Sweet Yarrow, Sweet Nancy, Sweet Maudlin | Perhaps only cultivated. | Native of Europe. |  (c) Bas, Yves - CC-BY |
| Asteraceae | Achillea filipendulina | Fernleaf Yarrow | Disturbed areas, persistent after cultivation. | Native of the Caucasus. |  (c) Wildfire, Luke - CC-BY |
| Asteraceae | Achillea gracilis | Eastern Yarrow, Eastern Thousandleaf | Grassy balds, meadows, pastures, roadsides, disturbed areas. | Widespread in e. North America. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Achillea millefolium | Yarrow, Thousandleaf | Disturbed areas near ports. | Native of Eurasia. Only a few collections of the European races of the Achillea millefolium aggregate are known in eastern North America, from near old port cities (J. Ramsey, pers. comm.). | (c) Bradley, Keith |
| Asteraceae | Achillea ptarmica | Sneezeweed, Sneezewort | Disturbed areas. | Native of Eurasia. Weakly naturalized south to West Virginia and at scattered sites in Pennsylvania (Rhoads & Klein 1993). |  (c) Wolkenberg, Sandy - CC-BY |
| Asteraceae | Acmella | Spotflower |  (c) Cressler, Alan M. | ||
| Asteraceae | Acmella decumbens var. decumbens | Waif on ballast. | Native of South America. Known in our region from a single collection at Camden, New Jersey. |  (c) Castro, Candela - CC-BY | |
| Asteraceae | Acmella pilosa | Hairy Spotflower | Disturbed areas. | Native of Mexico and Central America. |  (c) Hammer, Roger L. |
| Asteraceae | Acmella pusilla | Argentine Spotflower | Lawns, disturbed areas (especially around old seaports). | Native of South America. Known from scattered locations in the se. United States (North Carolina, South Carolina, Georgia, Florida), associated with old seaports, such as Wilmington, North Carolina, Savannah, Georgia, Pensacola and Apalachicola, Florida, and perhaps not well-established at some of the reported locations. Reported as naturalized and "locally common" at a site in Chatham County, Georgia (Carter, Baker, & Morris 2009). |  (c) staff, FLAS Herbarium |
| Asteraceae | Acmella repens | Creeping Spotflower | Floating vegetation mats, blackwater levee and swamp forests, roadsides, streambanks, other moist, open, habitats. | Se. Virginia and e. North Carolina south to s. Florida, west to e. Texas, north in the Mississippi Embayment to w. Tennessee and s. Missouri. Sometimes considered also to be distributed from Mexico south to n. South America (POWO 2024), though FNA has as only in Coahuila south of the United States. The northernmost part of its distribution (e.g. se. Virginia) may be adventive. |  © Scott Ward |
| Asteraceae | Acourtia | Desert-peony |  (c) Cressler, Alan M. | ||
| Asteraceae | Acourtia runcinata | Featherleaf Desert-peony | Juniper and oak woodlands, matorral. | C. Texas south to Mexico (Chihuahua, Coahuila, Hidalgo, Nuevo León, Querétaro, San Luis Potosí, Tamaulipas, Veracruz, Zacatecas). | (c) Cressler, Alan M. |
| Asteraceae | Ageratina | Milk-poison, White Snakeroot |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG | ||
| Asteraceae | Ageratina altissima | Common White Snakeroot, Common Milk-poison, Tête de vielle femme | Moist forests, such as cove forests. Mesic forests, successional and disturbed forests, old fields. | Québec west to se. North Dakota, south to Panhandle Florida and c. Texas. |  (c) Bradley, Keith |
| Asteraceae | Ageratina aromatica | Small-leaved White Snakeroot, Wild-hoarhound | Woodlands and forests, usually xeric, and often fire-maintained, longleaf pine sandhills, also woodland edges. | Massachusetts, New York, and Ohio, south to ne. Florida, Panhandle Florida, and e. Louisiana (Florida parishes). |  (c) Fleming, Gary P. |
| Asteraceae | Ageratina havanensis | Shrubby Boneset, Havana Snakeroot | Calcareous woodlands. | C. Texas south through ne. Mexico (Chihuahua, Coahuila, Guanajuato, Hidalgo, Nuevo León, Querétaro, San Luis Potosí, Tamaulipas, Veracruz); Cuba, Bahamas. |  (c) Wong, Michelle - CC-BY |
| Asteraceae | Ageratina jucunda | Hammock Snakeroot | Longleaf pine sandhills, Florida scrub, other dry pinelands, subxeric hardwood hammocks, dry roadsides. | Se. Georgia south to s. Florida, west to e. Panhandle Florida. |  (c) Horn, Jay |
| Asteraceae | Ageratina luciae-brauniae | Rockhouse White Snakeroot | Sandstone rockhouses, at the base of sandstone cliffs (usually overhanging) in seepage or splash. | Endemic to the Cumberland Plateau of ne. Tennessee (Chester, Wofford, & Kral 1997) and se. Kentucky. |  (c) Finzel, Brian - CC-BY-SA |
| Asteraceae | Ageratina roanensis | Appalachian White Snakeroot, Appalachian Milk-poison | Moist forests, often abundant at high elevations. | Endemic to moderate to high elevations of the Southern Appalachians, from w. Virginia south to w. South Carolina, n. Georgia, e. Tennessee, e. Kentucky, and possibly ne. Alabama. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Ageratum | Ageratum, Flossflower, Pussyfoot |  (c) Bradley, Keith | ||
| Asteraceae | Ageratum conyzoides | Ageratum, Tropical Whiteweed, Goatbush | Disturbed areas. | Apparently native of Mexico. Recently relocated in Alabama (Diamond 2015). |  (c) Dyke, Mitch Van - CC-BY |
| Asteraceae | Ageratum houstonianum | Ageratum | Wet, disturbed areas. | Apparently native of se. Mexico and Central America. Reported for Alabama by Diamond (2014). |  (c) Bradley, Keith |
| Asteraceae | Ageratum littorale | Seaside Mistflower, Keys Ageratum, Seaside Whiteweed | Coastal berms, rockland hammocks, coastal rock barrens. | S. Florida; West Indies (Cuba, Hispaniola); s. Mexico (Campeche, Quintana Roo, Yucatán); Central America (Belize). |  (c) Bradley, Keith |
| Asteraceae | Amblyolepis | Huisache-daisy |  (c) Keith, Eric - CC-BY-NC, permission granted to NCBG | ||
| Asteraceae | Amblyolepis setigera | Huisache-daisy | Sandy or rocky open ground, and eastwards as a wool-combing mill waif (Nesom 2004d). | Texas and n. Mexico (Coahuila, Nuevo León, Tamaulipas). | (c) Keith, Eric - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Ambrosia | Ragweed |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG | ||
| Asteraceae | Ambrosia ×intergradiens | ||||
| Asteraceae | Ambrosia acanthicarpa | Annual Bursage | Disturbed areas. | Native of w. North America. | |
| Asteraceae | Ambrosia artemisiifolia | Common Ragweed, Hogweed, Massicot (frc), Herbe à poux (fr), Sarriette (fr) | Roadsides, gardens, disturbed soils, thin soils on rock outcrops. | Newfoundland and Labrador (Newfoundland), Nunavut, and British Columbia south to Florida, Texas, California and southward; the w. North American part of the distribution is usually considered as non-native. | (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Ambrosia bidentata | Lanceleaf Ragweed | Barrens, prairies, mafic and calcareous woodlands. | S. Ohio, c. Indiana, c. Illinois, and s. Iowa south to South Carolina (Bradley et al. [in prep.]), nw. Georgia, n. Alabama, c. Louisiana and c. Texas. Scattered occurrences in other areas probably represent introductions. |  (c) Fleming, Gary P. |
| Asteraceae | Ambrosia cheiranthifolia | Rio Grande Ragweed, South Texas Ambrosia | Coastal prairies, in seasonally saturated clays. | S. Texas (Cameron, Jim Wells, Kleberg, and Nueces counties) and ne. Mexico (Coahuila, Tamaulipas). |  © Adam Black |
| Asteraceae | Ambrosia confertiflora | Field Ragweed | Disturbed areas. | Sw. Kansas, s. Colorado, s. Utah, c. California, south to s. Texas, w. Texas, New Mexico, Arizona, and widespread in Mexico. Reported for Tennessee (Strother (2006dd). | |
| Asteraceae | Ambrosia hispida | Coastal Ragweed | Beaches, dunes, and less commonly inland in hammocks. | Peninsular Florida; West Indies; s. Mexico (Quintana Roo, Veracruz, Yucatán) and Central America. |  (c) Horn, Jay |
| Asteraceae | Ambrosia porcheri | Outcrop Ragweed | In shallow soil mats on granitic domes. | Apparently endemic to the Piedmont Blue Ridge escarpment region of nw. South Carolina. |  (c) Ward, Scott G |
| Asteraceae | Ambrosia psilostachya | Perennial Ragweed | Calcareous prairies (westwards); in loamy sandy soil of flats and slight depressions in periodically burned longleaf pine uplands; also in disturbed areas. | Michigan west to Montana, south to Louisiana and New Mexico; also scattered along eastern seaboard states (Maine, New Hampshire, New York, North Carolina, South Carolina, Georgia, Florida, Virginia), where perhaps some of the distribution is adventive. In Virginia, apparently first collected in 2000. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Ambrosia tenuifolia | Waif. | Presumably a waif in Louisiana. Native of South America. | ||
| Asteraceae | Ambrosia tomentosa | Perennial Bursage, Skeletonleaf Bursage | Disturbed areas; introduced from w. North America. | Native of w. North America. | |
| Asteraceae | Ambrosia trifida var. texana | Texas Giant Ragweed | Floodplains, moist pastures; disturbed ground. | S. Illinois and Missouri south to Mississippi, s. Texas, and Mexico (Chihuahua, Coahuila, Hidalgo, Querétaro, Sonora, Tamaulipas, Veracruz). |  (c) Campos, Aidan |
| Asteraceae | Ambrosia trifida var. trifida | Giant Ragweed, Herbe du sang (frc) | Floodplains, moist pastures, disturbed ground. | Nova Scotia and British Columbia south to n. peninsular Florida, Panhandle Florida, Texas, and California. Report from s. Florida (Kartesz 2022) is false, based on misidentified specimen. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Ampelaster | Climbing-aster |  (c) Cressler, Alan M. | ||
| Asteraceae | Ampelaster carolinianus | Climbing Aster | Swamps, thickets, marshes, streambanks, freshwater tidal marshes and swamps. | Se. North Carolina south to s. Florida, west to s. Alabama. Reported for s. Alabama (H. Horne, pers. comm. 2017). | (c) Cressler, Alan M. |
| Asteraceae | Amphiachyris | Broomweed |  (c) Campos, Aidan | ||
| Asteraceae | Amphiachyris amoena | Annual Broomweed | Calcareous soils and gravels over limestone. | Nc. Texas south to sc. Texas. |  (c) Keith, Eric - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Amphiachyris dracunculoides | Prairie Broomweed, Broom Snakeroot | Limestone glades, disturbed areas over calcareous rocks; also rarely eastwards as a wool-combing mill waif (Nesom 2004d). | This species is relatively common and weedy in cedar glade habitats in the Nashville Basin of c. Tennessee, where apparently native (Chester, Wofford, & Kral 1997). |  (c) Campos, Aidan |
| Asteraceae | Anacis |  (c) Fleming, Gary P. | |||
| Asteraceae | Anacis delphiniifolia | Larkspur Coreopsis | Dry woodlands. | The species ranges from e. Virginia and s. North Carolina south to c. Georgia, and se. Tennessee (Polk County) (Chester, Wofford, & Kral 1997), and reputedly Alabama. |  © Scott Ward |
| Asteraceae | Anacis major | Woodland Coreopsis | Dry woodlands, dry and dry-mesic forests, longleaf pine sandhills, roadsides. | W. Virginia, West Virginia, s. Ohio, and Kentucky south to Georgia, Florida Panhandle, s. Alabama, s.Mississippi, and se. Louisiana; disjunct in w. Louisiana. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Anacis palmata | Finger Coreopsis, Stiff Tickseed, Prairie Coreopsis | Prairies, glades, oak savannas, woodlands, roadsides. | Se. Michigan, Wisconsin, and Minnesota south to n. Louisiana and se. Oklahoma. |  (c) Marcum, Paul |
| Asteraceae | Anacis pulchra | Lookout Mountain Coreopsis | Sandstone outcrops and adjacent woodlands. | Endemic to ne. Alabama (reports from Georgia are apparently unsubstantiated). |  (c) Doby, Joshua - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Anacis tripteris | Tall Coreopsis | Bottomland forests, riverside scours, other rich, moist woodlands and woodland borders, wet hammocks (FL), primarily over calcareous or mafic rocks or on nutrient-rich alluvium. | Massachusetts, s. Ontario, and Wisconsin south to Panhandle Florida and e. Texas. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Anacis verticillata | Threadleaf Coreopsis | Dry sandy, rocky, or clayey woodlands and woodland borders; also a waif or persistent from horticultural use. | Smith (1976) indicates that the species consists of two chromosome races, a diploid, ranging in the Piedmont and Mountains from c. South Carolina and North Carolina north to ne. West Virginia, and s. Maryland, and an allotetraploid, limited to the Coastal Plain of ne. North Carolina and se. Virginia. |  (c) Fleming, Gary P. |
| Asteraceae | Anacyclus | Pellitory |  (c) Haddad, Karim - CC-BY | ||
| Asteraceae | Anacyclus clavatus | White-Buttons, White Anacyclus | Waif on ballast. | Native of Mediterranean Europe, w. Asia, and n. Africa. |  (c) Chetibi, Mehdi - CC-BY |
| Asteraceae | Anaphalis | Pearly-everlasting |  (c) Bradley, Keith | ||
| Asteraceae | Anaphalis margaritacea | Pearly-everlasting | Dry open places, native in the norther parts of our region (see map), but southwards probably only persistent from or a waif from cultivation. Very abundant and weedy in large parts of n. and w. North America, sometimes grown for ornament (especially dried arrangements) in our area. | Interruptedly circumboreal, in North America from Newfoundland and Labrador (Labrador) and Newfoundland and Labrador (Newfoundland) west to Alaska, south to North Carolina, Tennessee, Oklahoma, Texas, New Mexico, California, Baja California, and Sonora. Reported from the 1800s from the Coastal Plain of South Carolina (Bradley et al. [in prep.]), presumably a waif. |  (c) Bradley, Keith |
| Asteraceae | Antennaria | Pussytoes |  (c) Bradley, Keith | ||
| Asteraceae | Antennaria howellii ssp. canadensis | Dry woodlands. | Newfoundland and Labrador (Newfoundland) west to Yukon Territory, south to n. New Jersey, Maryland (?), Virginia (?), West Virginia (?), Ohio, Indiana, Wisconsin, and Minnesota. |  (c) McClosky, Daniel - CC-BY | |
| Asteraceae | Antennaria howellii ssp. neodioica | Shale bluffs and barrens, dry woodlands and rock outcrops. | Newfoundland and Labrador (Newfoundland) west to North West Territory, south to w. North Carolina, Tennessee, Kansas, Colorado, and Oregon. |  (c) Fleming, Gary P. | |
| Asteraceae | Antennaria howellii ssp. petaloidea | Field Pussytoes | Dry woodlands. | Newfoundland and Labrador (Newfoundland) west to British Columbia, south to North Carolina, West Virginia, Indiana, Illinois, Colorado, and Oregon. |  (c) Hale, Brian - CC-BY |
| Asteraceae | Antennaria neglecta | Field Pussytoes | Dry woodlands and fields. | Nova Scotia west to Northwest Territories and British Columbia, south to Virginia, Kentucky, Arkansas, Oklahoma, and Colorado. |  (c) Danielson, Erik |
| Asteraceae | Antennaria parlinii ssp. fallax | Big-head Pussytoes | Dry woodlands. | Nova Scotia west to Minnesota, south to Georgia, Alabama, Mississippi, Louisiana, and Texas. |  (c) Kluge, Mark - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Antennaria parlinii ssp. parlinii | Parlin's Pussytoes | Woodlands, roadbanks. | Nova Scotia west to Manitoba, south to Georgia, Alabama, Mississippi, and Louisiana. |  (c) Fleming, Gary P. |
| Asteraceae | Antennaria plantaginifolia | Plantain Pussytoes | Dry woodlands, roadside banks, cemeteries, pastures. | Maine, New York, s. Indiana, and s. Illinois south to Panhandle Florida and Mississippi; disjunct in the Driftless Area of ec. Wisconsin and se. Minnesota. | (c) Bradley, Keith |
| Asteraceae | Antennaria pulvinata | Rosy Pussytoes | The sole specimen allegedly documenting the occurrence of this taxon in our Flora region is controversial as to identity and more plausibly represents A. virginica. |  (c) Brinker, Samuel - CC-BY-NC, permission granted to NCBG | |
| Asteraceae | Antennaria solitaria | Southern Single-head Pussytoes | Forests and woodlands, often mesic and/or shaded. | Virginia, West Virginia, sw. Pennsylvania, s. Ohio, and s. Indiana south to Georgia, Louisiana, and Oklahoma. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Antennaria virginica | Shale-barren Pussytoes | Shale barrens and other dry, rocky habitats. | C. Pennsylvania and e. Ohio south to sw. Virginia. |  (c) Fleming, Gary P. |
| Asteraceae | Anthemis | Chamomile |  (c) Lawless, Kenneth | ||
| Asteraceae | Anthemis arvensis | Corn Chamomile | Roadsides, disturbed areas. | Native of Europe. |  (c) Patterson, Bruce |
| Asteraceae | Anthemis cotula | Mayweed, Stinking Chamomile, Mayweed, Dog-fennel, Chigger-weed | Roadsides, disturbed areas. | Native of Eurasia. | (c) Lawless, Kenneth |
| Asteraceae | Anthemis secundiramea | Railroad embankment, ballast waif. | Native of Mediterranean Europe, probably merely a waif and not established. |  (c) Bas, Yves - CC-BY | |
| Asteraceae | Aphanostephus | Doze-daisy |  (c) Campos, Aidan | ||
| Asteraceae | Aphanostephus pilosus | Hairy Lazy-daisy | Prairies. | Oklahoma south to n. Texas. | |
| Asteraceae | Aphanostephus ramosissimus var. ramosissimus | Plains Lazy-daisy | Open, calcareous sites. | C. and w. Oklahoma south to s. Texas, New Mexico, and Mexico. | |
| Asteraceae | Aphanostephus riddellii | Riddell's Lazy-daisy | Open, calcareous sites. | Texas Panhandle and New Mexico south through Edwards Plateau and s. Texas to Mexico (Coahuila, Nuevo León, Tamaulipas). | |
| Asteraceae | Aphanostephus skirrhobasis var. kidderi | Matorral and scrub. | S. Texas and ne. Mexico (Nuevo León, Tamaulipas). |  (c) Cooper, Rose - CC-BY-NC-ND | |
| Asteraceae | Aphanostephus skirrhobasis var. skirrhobasis | Arkansas Lazy-daisy | Prairies, sandy woodlands. | Arkansas, s. Kansas, and nw. New Mexico south to s. Texas. |  (c) Hill, Sonnia |
| Asteraceae | Aphanostephus skirrhobasis var. thalassius | Dune Doze-daisy | Dunes, disturbed coastal sands. | S. Louisiana and sw. Arkansas west to s. Kansas, e. New Mexico, coastal Texas and Mexico (Nuevo León, Tamaulipas); scattered in n. Florida, both Panhandle Florida (Bay and Escambia counties) and ne. Florida (St. Johns County) (Wunderlin & Hansen 2004). | |
| Asteraceae | Arctium | Burdock, Clotbur |  (c) Danielson, Erik | ||
| Asteraceae | Arctium lappa | Great Burdock | Fields and roadsides. | Native of Eurasia. | (c) Danielson, Erik |
| Asteraceae | Arctium minus | Common Burdock | Pastures, barnyards, roadsides, other disturbed areas. | Native of Eurasia. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Arctium tomentosum | Cotton Burdock | Disturbed areas. | Native of Eurasia. Material purporting to be this taxon from Union County, South Carolina, and the basis of its occurrence in that state, is actually a pubescent form of A. minus. |  (c) Максимова, Татьяна - CC-BY |
| Asteraceae | Arctotis | African-daisy, Arctotis |  (c) Berkel, Nicola van - CC-BY-SA | ||
| Asteraceae | Arctotis venusta | Blue-eyed African-daisy, Silver Arctotis | Disturbed areas. | Native of s. Africa. |  (c) Botswanabugs - CC0 |
| Asteraceae | Arnica | Arnica |  (c) Fleming, Gary P. | ||
| Asteraceae | Arnica acaulis | Leopard’s-bane, Southeastern Arnica | Longleaf pine savannas, longleaf pine sandhills, clayey or sandy oak and oak-pine woodlands, powerline rights-of-way, roadbanks. | Delaware (historical) and se. Pennsylvania and Maryland (where on serpentine) south to Panhandle Florida, on the Coastal Plain and lower Piedmont (rarely upper Piedmont, as in w. South Carolina in the Blue Ridge Escarpment region). |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Arnoglossum | Indian-plantain |  (c) Fleming, Gary P. | ||
| Asteraceae | Arnoglossum album | Panhandle Indian-plantain | Wet pine savannas. | Endemic to Florida Panhandle (Bay and Gulf counties). |  (c) Davis, Scott Allen - CC-BY |
| Asteraceae | Arnoglossum atriplicifolium | Pale Indian-plantain | Mesic forests, open woodlands and woodland edges, clearings, prairies, meadows. | New York, Minnesota, and Nebraska south to Panhandle Florida and Louisiana (attribution to Massachusetts is in error, A.Haines, pers.comm.). |  (c) Bradley, Keith |
| Asteraceae | Arnoglossum diversifolium | Variable-leaf Indian-plantain | Calcareous swamps, calcareous hydric hammocks. | Sw. Georgia and Panhandle Florida, west to s. Alabama; disjunct in nw. peninsular Florida. |  (c) Griffith, Floyd A. |
| Asteraceae | Arnoglossum floridanum | Florida Indian-plantain | Longleaf pine sandhills. Open sand gaps in xeric longleaf sandhills. | Ne. Florida and e. Florida Panhandle south to c. peninsular Florida. |  (c) Ward, Scott G |
| Asteraceae | Arnoglossum ovatum var. lanceolatum | Savanna Indian-plantain | Wet pine savannas, especially over coquina limestone ("marl"). | Se. North Carolina to s. Florida, west to e. Texas. |  (c) Bradley, Keith |
| Asteraceae | Arnoglossum ovatum var. ovatum | Broadleaf Indian-plantain | Bottomlands, bay forests, moist or wet forests. | E. Georgia west to e. Louisiana. |  (c) staff, GA Herbarium |
| Asteraceae | Arnoglossum plantagineum | Western Indian-plantain | Prairies, wet calcareous glades, marshes, bogs, persistent in 'improved' pastures. | Michigan, s. Wisconsin, s. Minnesota, and ne. South Dakota south to Ohio, Nashville Basin of c. Tennessee (Chester, Wofford, & Kral 1997), Alabama, Mississippi, Louisiana, and c. Texas; also reported for sc. South Carolina, in the unpublished flora of the Savannah River Site by Batson, Angerman, and Jones (a record considered questionable without additional documentation). |  (c) Campos, Aidan |
| Asteraceae | Arnoglossum reniforme | Great Indian-plantain | Cove forests, floodplains, other mesic forests. | Pennsylvania and Minnesota, south to South Carolina (Gaddy 2014), Georgia, Mississippi, and Oklahoma. | (c) Fleming, Gary P. |
| Asteraceae | Arnoglossum sulcatum | Grooved-stem Indian-plantain | Bottomland forests. | Sw. Georgia and Panhandle Florida west to s. Alabama. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Arnoseris |  (c) Hosper, Andre - CC-BY | |||
| Asteraceae | Arnoseris minima | Lamb-succory, Dwarf Nipplewort | Disturbed areas. | Native of Europe. | (c) Hosper, Andre - CC-BY |
| Asteraceae | Artemisia | Wormwood, Mugwort, Sage |  (c) Fleming, Gary P. | ||
| Asteraceae | Artemisia abrotanum | Southernwood, Lad’s Love, Old Man, Southern Wormwood | Disturbed areas, waif from horticultural use. | Native of Mediterranean Europe. Reported as a waif in e. Virginia (Reed 1964). |  (c) Glazunov, Valerii - CC-BY |
| Asteraceae | Artemisia absinthium | Common Wormwood, Absinthium, Ajenjo | Fields, roadsides, other disturbed areas. | Native of Europe. |  (c) Oldham, Michael J. - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Artemisia annua | Sweet Annie, Sweet Wormwood, Sweet Sagewort, Annual Mugwort | Barnyards, roadsides, disturbed areas, waste areas around wool-combing mills (Nesom 2004d). | Native of Asia and e. Europe. | (c) Fleming, Gary P. |
| Asteraceae | Artemisia biennis | Biennial Wormwood | Disturbed areas, especially in sandy soils; also waif in waste area around wool-combing mills (SC). | Native of the w. United States. Reported for South Carolina by Nesom (2004d); also reported to be naturalized as far east as Tennessee and West Virginia (Hardy County). |  (c) Lamb, Eric - CC-BY |
| Asteraceae | Artemisia carruthii | Carruth's Wormwood, Kansas Mugwort | Dry grasslands; eastwards adventive in disturbed areas. | Nebraska, Colorado, Utah, and Nevada south to Oklahoma, w. Texas, New Mexico, Arizona, and n. Mexico (Baja California, Chihuahua, Nuevo León, Sonora). | |
| Asteraceae | Artemisia caudata | Sand Wormwood, Beach Wormwood | Sandy woodlands, beaches and dunes, gravelly and rocky shores; also adventive in sandy fields, on roadsides, in railroad ballast, and other disturbed areas. | Native south to New Jersey, Pennsylvania, Ohio, Indiana, Illinois, Missouri, Arkansas (?), Oklahoma, and Texas. Rare at Presque Isle, nw. Pennsylvania (S. Grund, pers.comm., 2021). |  (c) saari, cassi - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Artemisia dracunculus | Tarragon, Silky Wormwood, Dragon Wormwood | Dry, open areas. | Ontario west to Alaska, south to Illinois, Missouri, Oklahoma, Texas, New Mexico, Arizona, California, and Mexico; Eurasia. |  (c) Quirin, Chris - CC-BY |
| Asteraceae | Artemisia filifolia | Silver Sagebush | Dry prairies and dunes, especially in sandy soils; sometimes grown horticulturally. | South Dakota, Wyoming, and Nevada south to c. Oklahoma, c. Texas, New Mexico, Arizona, and n. Mexico (Chihuahua, Coahuila, Durango, Tamaulipas). This taxon approaches, but does not enter our flora area. The furthest eastern counties that it has been documented occur just west of the Cross Timbers ecoprovince (e.g., Jefferson Co., OK; Kingman Co., KS). Similarly, it is not listed as present in Diggs, Lipscomb & O'Kennon (1999). |  (c) Wong, Michelle - CC-BY |
| Asteraceae | Artemisia frigida | Silver Sage, Prairie Sagewort | Roadsides and open disturbed areas. | Native of northern and western North America and Eurasia. |  (c) Danielson, Erik |
| Asteraceae | Artemisia ludoviciana | White Sage, White Sagewort, Prairie Sage, Western Mugwort | Prairies, roadsides, fencerows, eastwards in disturbed areas. | Michigan west to Alaska, south as a native to Illinois, Arkansas, Texas, New Mexico, Arizona, California, and s. Mexico. |  (c) Campos, Aidan |
| Asteraceae | Artemisia mexicana | White Sagebrush, Silver Wormwood | Prairies, forest openings, disturbed areas. | Missouri, Nebraska, Colorado, Utah, and California south to Texas, New Mexico, Arizona, and Mexico. Reported for c. Tennessee (Kartesz 2015). |  (c) Witsell, Theo - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Artemisia pontica | Roman Wormwood, Green-ginger, Old Warrior | Disturbed areas, old fields, woodland edges, roadsides, ditches. | Native of Europe. Naturalized at least as far south as Delaware, se. Pennsylvania (Rhoads & Klein 1993), and Kentucky. | |
| Asteraceae | Artemisia scoparia | Waif on ore piles. | Native of Eurasia. |  (c) Magsar, Urgamal - CC-BY | |
| Asteraceae | Artemisia stelleriana | Beach Wormwood, Dusty Miller, Hoary Mugwort | Sandy roadsides, dunes, other disturbed areas. | Native of the Aletian Islands (Alaska). This plant is reported (with documenting photograph) as naturalized and spreading in Nags Head (Dare County, North Carolina) (Graetz 1973), and also more recently with a specimen from Currituck County by R.K. Peet. |  (c) Fleming, Gary P. |
| Asteraceae | Artemisia tridentata ssp. tridentata | Big Sagebrush | Disturbed areas, waif from horticultural use. | Native of w. North America. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Artemisia verlotiorum | Chinese Mugwort | Roadsides, other disturbed areas. | Native of China. |  (c) B., Mila - CC-BY |
| Asteraceae | Artemisia vulgaris | Common Mugwort, Felon Herb | Roadsides, pastures, fencerows, disturbed areas. | Native of Eurasia. |  (c) Danielson, Erik |
| Asteraceae | Aster | Aster |  (c) Fleming, Gary P. | ||
| Asteraceae | Aster tataricus | Tartarian Aster | Commonly cultivated, rarely persisting or spreading short distances from plantings. | Native of e. and ne. Asia. | (c) Fleming, Gary P. |
| Asteraceae | Asteraceae | Aster Family |  (c) Fleming, Gary P. | ||
| Asteraceae | Astranthium | Western-daisy |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG | ||
| Asteraceae | Astranthium ciliatum | Comanche Western-daisy | Chert, limestone, and dolomite glades, prairies, oak savannas. | Sw. Missouri and s. Kansas south through Arkansas and Oklahoma to Texas and Mexico (Nuevo León and Tamaulipas). |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Astranthium integrifolium | Eastern Western-daisy | Limestone glades, barrens, rocky woodlands, roadsides. | Nc. Kentucky south through c. Tennessee to nw. Georgia and ne. Alabama (primarily in the Interior Low Plateau); disjunct in c. Mississippi (where a waif) and also disjunct in nc. West Virginia, where presumably introduced. |  (c) Cressler, Alan M. |
| Asteraceae | Baccharis | Silverling, High-tide Bush, Mullet Bush, Groundsel Tree, Baccharis |  (c) Fleming, Gary P. | ||
| Asteraceae | Baccharis angustifolia | False-willow | Interdune swales, wet hammocks, marsh edges. | Ne. North Carolina south to s. Florida, west to Louisiana; Bahamas. |  (c) Horn, Jay |
| Asteraceae | Baccharis dioica | Broombush False-willow | Rockland hammock edges, barrier island sands. | S. Florida (where apparently extirpated); s. Louisiana (Pelican Island, Barataria Island complex, Plaquemines Parish; L. Urbatsch, pers.comm., 2023); West Indies; Mexico (Tamaulipas, Yucatan). Reports of this species from s. Alabama (Dauphin Island, Baldwin County) are not correctly identified; they represent narrow-leaved material of B. halimifolia, perhaps introgressed with B. angustifolia. |  (c) Hammer, Roger L. |
| Asteraceae | Baccharis glomeruliflora | Wet hammocks, swamp edges, marsh edges, interdune swales, wet pine savanna margins. | Se. North Carolina south to s. Florida, west to Mississippi; Bahamas; West Indies (Cuba). |  (c) Horn, Jay | |
| Asteraceae | Baccharis halimifolia | Silverling, High-tide-bush, Mulletbush, Saltbush, Waterbush, Groundsel Tree, Manglier (frc), Sea-myrtle, Consumption-weed, Winter-willow | Fresh and brackish marshes, marsh borders, hammocks, moist abused land, roadsides, ditches, old fields, and a wide variety of disturbed areas. B. halimifolia is becoming increasingly common inland, and can be an especially aggressive invader in sunny sites after silvicultural disturbance. | Se. Massachusetts south to s. Florida, west to Texas, Arkansas, and Oklahoma; West Indies. Moving northwards as a weed; reported for sw. Missouri (Aaron 2024). | (c) Fleming, Gary P. |
| Asteraceae | Baccharis neglecta | Roosevelt-weed, New Deal Weed, Jara Dulce | Calcareous soils, especially roadsides and disturbed areas. | C. Oklahoma south to e., s, and w. Texas and Mexico. | |
| Asteraceae | Baccharis salicifolia | Seepwillow, Water-wally, Jara | Riverbanks, sandy areas. | S. Texas west to n. California, south into s. Mexico, Central America, and South America. |  (c) Bradley, Keith |
| Asteraceae | Baccharis salicina | Willow-Baccharis, Great Plains False-willow | Sandy subsaline soils, disturbed areas. | Kansas west to California, south to e. Texas, s. Texas, New Mexico, Arizona, and Mexico (Baja California, Chihuahua, Coahuila, Durango, Nuevo León, Sonora, Tamaulipas). | |
| Asteraceae | Baccharis texana | Prairie Baccharis | Prairies, other calcareous areas. | Sc. Oklahoma south to s. Texas and n. Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Tamaulipas). | |
| Asteraceae | Baccharis wrightii | Eastwards in disturbed areas. | W. Kansas west to s. Utah, south to s. Texas, New Mexico, Arizona, and Mexico (Chihuahua, Durango, Sonora). | ||
| Asteraceae | Balduina | Honeycomb-head, Balduina |  (c) Bradley, Keith | ||
| Asteraceae | Balduina angustifolia | Sandhill Honeycomb-head, Sandhill Balduina | Longleaf pine sandhills, pine rocklands, and other dry, sandy soils. | Georgia south to s. Florida, west to s. Mississippi; it should be sought in s. South Carolina. |  (c) Ward, Scott G |
| Asteraceae | Balduina atropurpurea | Bog Honeycomb-head, Purple Honeycomb-head, Purple Balduina | Peaty seepage bogs and wet pine savannas. | A southeastern Coastal Plain endemic, very rare and disjunct in se. North Carolina and nc. South Carolina, primarily in ne. to sc. Georgia and ne. Florida. |  (c) Cressler, Alan M. |
| Asteraceae | Balduina uniflora | Savanna Honeycomb-head, Yellow Balduina | Wet pine savannas and pine flatwoods. | A southeastern Coastal Plain endemic: se. North Carolina and immediately adjacent ne. South Carolina (apparently absent from much of South Carolina), and from extreme s. South Carolina south to ne. Florida, Florida Panhandle, and west to e. Louisiana. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Bellis | English Daisy |  (c) Danielson, Erik | ||
| Asteraceae | Bellis perennis | English Daisy | Lawns, grassy roadsides. | Native of Europe. | (c) Danielson, Erik |
| Asteraceae | Berlandiera | Green-eyes |  (c) Ward, Scott G | ||
| Asteraceae | Berlandiera betonicifolia | Texas Green-eyes | Post oak woodlands, sandy prairies. | Missouri, s. Kansas, Oklahoma, and n. Texas south irregularly to c. Louisiana, e. Texas, and c. and se. Texas. |  (c) Campos, Aidan |
| Asteraceae | Berlandiera humilis | Low Green-eyes | Longleaf pine sandhills. | Se. South Carolina, s. Georgia, n. Florida and se. Alabama. | |
| Asteraceae | Berlandiera lyrata | Lyreleaf Green-eyes | Dry, rocky limestone areas. | Sw. Kansas, s. Colorado south to ne. Texas, c. Texas, w. Texas, New Mexico, Arizona, and Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Jalisco, Nuevo León, San Luis Potosí, Sonora, Tamaulipas, Zacatecas). |  (c) Hill, Sonnia |
| Asteraceae | Berlandiera pumila var. pumila | Eastern Green-eyes | Longleaf pine sandhills, disturbed sandy areas. | Nc. South Carolina south to n. peninsular Florida, west to s. Alabama; sw. Arkansas and w. Louisiana to c. Texas. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Berlandiera pumila var. scabrella | Longleaf pine sandhills. | W. Louisiana and e. Texas. | ||
| Asteraceae | Berlandiera subacaulis | Florida Green-eyes | Longleaf pine sandhills, pine rocklands. | Endemic to Florida, from ne. Florida (Clay and Columbia counties) and e. Panhandle Florida (Leon, Jefferson, and Taylor counties) south to s. Florida (Wunderlin & Hansen 2004). |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Bidens | Beggar-ticks, Bur-marigold, Spanish-Needles, Fourchette (frc) |  (c) Fleming, Gary P. | ||
| Asteraceae | Bidens alba var. radiata | Romerillo, Shepherd's-Needle, White-flowered Bidens, White-flowered Spanish-Needles | Disturbed areas. | Adventive from the New World tropics, possibly native in s. Florida. Reported for Clarksville, Montgomery County, Tennessee (Kraft 2016). |  (c) Campos, Aidan |
| Asteraceae | Bidens aristosa | Midwestern Tickseed-sunflower, Ozark Tickseed-sunflower | Marshes, wet meadows, ditches, bogs. | Delaware, Maryland, Illinois, and Missouri south to Georgia, Alabama, Florida (?), and Texas (and adventive farther north); the pre-Columbian distribution is uncertain, and portions of the eastern range of the species may be only from, expansion from a more midwestern distribution. |  (c) Danielson, Erik |
| Asteraceae | Bidens beckii | Water-marigold, Water Beggar-ticks | Aquatic in calcareous lakes and swamps. | Nova Scotia west to Saskatchewan, south to n. New Jersey, Pennsylvania, n. Ohio, n. Indiana, Illinois, and Iowa. |  (c) Martineau, Nate - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Bidens bidentoides | Estuary Bidens | Tidal shores and mudflats. | New York south to se. Pennsylvania, Delaware, and e. Maryland, declining in abundance and distribution. |  (c) simonpesant - CC-BY |
| Asteraceae | Bidens bipinnata | Spanish Needles | Floodplains, disturbed areas, gardens, fields, roadsides, ditches. | Massachusetts, New York, Ontario, Iowa, Nebraska, and Arizona south to c. Florida and Mexico (?); e. Asia. |  (c) Fleming, Gary P. |
| Asteraceae | Bidens cernua | Nodding Bur-marigold | Marshes, wet meadows, bogs, ditches. | Circumboreal, south in North America to Georgia, Alabama, Louisiana, New Mexico, Arizona, and California. |  (c) Ward, Scott G |
| Asteraceae | Bidens comosa | Strawstem Beggar-ticks | Marshes, bogs, wet meadows, disturbed areas. | Newfoundland and Labrador (Newfoundland) and British Columbia south to Georgia, Texas, and California. |  (c) Fleming, Gary P. |
| Asteraceae | Bidens connata | Purplestem Beggar-ticks | Marshes, bogs, wet meadows, disturbed areas. | Québec, Ontario, and North Dakota south to Georgia, Alabama, and Kansas. |  (c) Fleming, Gary P. |
| Asteraceae | Bidens discoidea | Few-bracted Beggar-ticks | Floodplain forests, marshes. | Nova Scotia and Minnesota south to ne. Florida, Panhandle Florida, and Texas. |  (c) Marcum, Paul |
| Asteraceae | Bidens eatonii | Eaton's Beggarticks | Tidal marshes. | N. New Jersey northwards to Maine and New Brunswick. Only occurring in n. New Jersey in our flora area (Middlesex County), where still extant (E. Olson, pers. comm., 2025). |  (c) Oldham, Michael J. - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Bidens frondosa | Devil's Beggar-ticks, Ditch-daisy | Fields, pastures, wet meadows, swamp forests, ditches. | Nova Scotia and Alaska south to Florida, Texas, California, and southward. |  (c) Cressler, Alan M. |
| Asteraceae | Bidens laevis | Showy Bur-marigold | Marshes, stream banks, ditches. | Maine, New York, Indiana, Missouri, Nevada, and California southward. |  (c) Fleming, Gary P. |
| Asteraceae | Bidens mitis | Coastal Plain Tickseed-sunflower | Brackish marshes, fresh marshes, bogs (inland). | New Jersey south to Florida, west to Texas, primarily Coastal Plain, rare and scattered inland. |  (c) Griffith, Floyd A. |
| Asteraceae | Bidens pilosa | Disturbed areas, ballast, waste areas near wool-combing mill. | Native of tropical America. Reported for North Carolina (Kartesz 1999), perhaps based on confusion with B. alba; known from ballast in se. Pennsylvania (Rhoads & Klein 1993). |  (c) Gwaltney, John | |
| Asteraceae | Bidens polylepis | Midwestern Tickseeed-sunflower | Marshes, wet meadows, ditches, bogs. | Delaware, Maryland, Illinois, and Missouri south to Georgia, Alabama, Florida (?), and Texas (and adventive farther north); the pre-Columbian distribution is uncertain, and portions of the eastern range of the species may be only from expansion from a more midwestern distribution. |  (c) Danielson, Erik |
| Asteraceae | Bidens tenuisecta | Waifs. | Native of sw. United States and Mexico. |  (c) Kelly, CK - CC-BY | |
| Asteraceae | Bidens trichosperma | Northern Tickseed-sunflower | Tidal marshes, other marshes. | Québec, Minnesota, and South Dakota south to ne. Florida, Georgia, Louisiana, and Nebraska. Reports from the deep South are mostly or entirely based on misidentifications of B. mitis. |  (c) Fleming, Gary P. |
| Asteraceae | Bidens vulgata | Tall Beggar-ticks | Fields, marshes, wet places. | Québec and British Columbia south to Georgia, Louisiana, and California. |  (c) Fleming, Gary P. |
| Asteraceae | Bigelowia | Rayless-goldenrod |  (c) Sorrie, Bruce A. - CC-BY | ||
| Asteraceae | Bigelowia australis | Florida Rayless-Goldenrod | Mesic to wet pine flatwoods, pine savannas, pond-cypress depressions. | Ne. Florida (Bradford County) south to s. Florida. |  (c) Horn, Jay |
| Asteraceae | Bigelowia nudata | Rayless-Goldenrod | Pine savannas, pine flatwoods, pocosin edges. | E. North Carolina south to n. Florida and west to e. Louisiana. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Bigelowia nuttallii | Glade Rayless-Goldenrod, West Gulf Coastal Plain Rayless-Goldenrod | Prairies, sandstone glades, granite flatrocks, Altamaha Grit glades, and roadbanks. | W. Louisiana west to e. Texas; disjunct eastward in Mountains of ne. Alabama, Piedmont of c. Georgia, and Coastal Plain of s. Alabama, ec. Georgia (Jones & Coile 1988, Bridges & Orzell 1989), Panhandle Florida (Washington County), and wc. peninsular Florida (Pinellas County). |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Boltonia | Doll's-daisy |  (c) Fleming, Gary P. | ||
| Asteraceae | Boltonia apalachicolensis | Apalachicola Doll’s-daisy | Floodplain forests. | Panhandle Florida, s. Mississippi, west to Louisiana. |  (c) staff, NCU Herbarium |
| Asteraceae | Boltonia asteroides var. asteroides | Susquehanna Doll's-daisy | Riverbanks. | Along the Susquehanna River, Maryland and Pennsylvania. |  © Sherrie Moyer |
| Asteraceae | Boltonia asteroides var. glastifolia | Eastern Doll's-daisy | Pondcypress savannas, tidal freshwater marshes, other marshes, ditches. | New Jersey south to Panhandle Florida, west to Mississippi, Louisiana, and e. Texas, mostly on the Coastal Plain, but with a few disjunct occurrences inland, such as Henderson County, North Carolina. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Boltonia asteroides var. latisquama | Midwestern Doll's-daisy | Streambanks, marshes, sloughs, ditches. | Wisconsin west to North Dakota, south to Mississippi and Oklahoma; disjunct (presumably introduced) in North Carolina, se. Virginia, and other locations in e. North America. |  (c) brendaspitzer - CC-BY-NC |
| Asteraceae | Boltonia asteroides var. occidentalis | Marshes, prairies. | Michigan, Ohio, Kentucky, Tennessee west to Saskatchewan and Oklahoma; also native or naturalized in Idaho, Oregon, and Washington. |  (c) Keesling, Jim - CC-BY-NC, permission granted to NCBG | |
| Asteraceae | Boltonia caroliniana | Carolina Doll's-daisy | Bottomlands, ditches, roadsides, prairies. | Se. Virginia south to s. South Carolina (and Georgia according to Kartesz 2020), primarily on the Coastal Plain and Piedmont. |  (c) Fleming, Gary P. |
| Asteraceae | Boltonia decurrens | Clasping-leaf Doll's-daisy, Decurrent False-aster | Riverbanks, open areas in floodplains, edges of fields. | N. Illinois south to se. Missouri, along the Mississippi and Illinois rivers. |  (c) Marcum, Paul |
| Asteraceae | Boltonia diffusa var. diffusa | Southern Doll's-daisy | Clay-based Carolina bays, roadsides, powerline rights-of-way, and other artificially open areas. | Se. South Carolina south to s. Florida, west to e. Texas, inland in the interior to c. Tennessee, s. Illinois, s. Missouri, Arkansas, and se. Oklahoma; disjunct in the Bahamas (Mangrove Cay of Andros Island). See Sorrie & LeBlond (2008) for comments on distribution and nativity. |  © Bruce Sorrie |
| Asteraceae | Boltonia diffusa var. interior | Moist or dry open ground. | Kentucky and Tennessee west to Illinois, Oklahoma, and Louisiana. |  (c) Keesling, Jim - CC-BY-NC, permission granted to NCBG | |
| Asteraceae | Boltonia montana | Valley Doll's-daisy | Sinkhole ponds. | Augusta Co. Virginia and Ridge and Valley wetlands in New Jersey and (formerly) Pennsylvania. | (c) Fleming, Gary P. |
| Asteraceae | Borrichia | Seaside Oxeye |  (c) Danielson, Erik | ||
| Asteraceae | Borrichia ×cubana | S. Florida and West Indies (Cuba). | |||
| Asteraceae | Borrichia arborescens | Green Seaside Oxeye | Salt and brackish marshes, mangrove swamps, other maritime and saline wetlands. | S. peninsular Florida; West Indies; Mexico (Campeche, Quintana Roo, San Luis Potosí, Tabasco, Tamaulipas, Veracruz, Yucatán), Central America, South America. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Borrichia frutescens | Silver Seaside Oxeye | Salt and brackish marshes. | E. Maryland and e. Virginia south to s. Florida, west to Texas and Mexico (Gulf Coast to the Yucatan peninsula); Bahamas (Grand Bahama); Bermuda. |  (c) Fleming, Gary P. |
| Asteraceae | Bradburia | Golden-aster |  (c) Sorrie, Bruce A. - CC-BY | ||
| Asteraceae | Bradburia hirtella | Texas Goldenaster | Sandy and gravelly soils of prairies and woodland openings, disturbed areas. | E. Texas, eastwards into w. Louisiana (where perhaps only adventive). |  (c) Keith, Eric - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Bradburia pilosa | Soft Goldenaster | Barrens, prairies, glades, savannas, roadsides, disturbed areas. | S. Missouri and se. Kansas, south to w. Louisiana and e. Texas; populations east of the Mississippi River are questionably native. See Anderson (2007) for Florida record. | (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Brickellia | False-boneset, Brickell-bush |  (c) Bradley, Keith | ||
| Asteraceae | Brickellia cordifolia | Flyr's Brickellia, "Flyr's False-boneset" | Mesic pine-hardwood or oak-hickory woods of upland hammocks. | Sw. Georgia (Jones & Coile 1988; Carter, Baker, & Morris 2009) and Alabama south to Panhandle Florida and n. peninsular Florida. |  (c) Diamond, Alvin - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Brickellia cylindracea | Gravel-bar Brickell-bush | Calcareous woodlands and prairies. | Central Texas, mainly Edwards Plateau. |  (c) Witsell, Theo - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Brickellia dentata | Leafy Brickellia, Gravelbar Brickellbush | "Essentially restricted to frequently-scoured gravelly alluvial beds in creek and river bottoms" (Carr 2016). | Endemic to Texas, mainly Edwards Plateau, but also apparently in e. Texas. | |
| Asteraceae | Brickellia eupatorioides | Eastern Kuhnia | Dry slopes, longleaf pine sandhills (especially in loamy sites), shale barrens, dry woodlands, thickets. | New Jersey west to Indiana, s. Arkansas, se. Oklahoma, south to ec. peninsular Florida and se. Texas. |  (c) Fleming, Gary P. |
| Asteraceae | Brickellia grandiflora | Tassel-flower Brickellia | Glades, ledges, and rocky woodlands over calcareous rocks. | W. Nebraska, Montana, Alberta, and British Columbia south to w. Texas, New Mexico, Arizona, California, and Mexico (Baja California, Chihuahua, Coahuila, Jalisco, Nuevo León, Sonora, Tamaulipas); disjunct in Missouri, n. Arkansas, and c. Oklahoma. |  (c) Aaron, Nathan |
| Asteraceae | Brickellia leptophylla | Edwards Plateau Kuhnia | Limestone slopes, streambeds, calcareous prairies; "usually occurring in moist to dry gravelly alluvial soils along riverbanks but also on limestone slopes" (Carr 2016). | Ec. Texas (Edwards Plateau and adjacent Blackland Prairie regions), w. Oklahoma, Colorado, e. Utah south to n. Mexico and New Mexico. | |
| Asteraceae | Brickellia macranthra | Texas Kuhnia, Texas Brickellia | Calcareous woodlands. | Ne. and sc. Oklahoma south to sc. Texas. | |
| Asteraceae | Brickellia mosieri | Mosier’s Kuhnia, Florida Kuhnia, Rockland Kuhnia | Pine rocklands. | Endemic to s. Florida pine rocklands (Miami-Dade County). | (c) Bradley, Keith |
| Asteraceae | Brickellia ozarkana | Ozark Kuhnia, Ozark Brickellia | Dry slopes, woodlands, and glades. | Nc. Missouri south to sw. Arkansas and e. Oklahoma (largely endemic to the Interior Highlands). |  (c) Aaron, Nathan - CC-BY |
| Asteraceae | Brickellia suaveolens | Plains Kuhnia, Midwestern Brickellia | Dry slopes and woodlands, prairies. | Michigan west to Montana, south to s. Indiana, s. Illinois, sw. Missouri, c. and w. Oklahoma, and wc. Texas. |  (c) Sorrells, Ryan - CC-BY |
| Asteraceae | Calendula | Marigold |  (c) Summerbell, Emily - CC-BY | ||
| Asteraceae | Calendula arvensis | Field-Marigold | Waif on ballast. | Native of Europe. |  (c) Frumkin, Ron - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Calendula officinalis | Pot-marigold | Disturbed areas, a waif or "throw-out" from horticultural use. | Native of Mediterranean Europe. |  (c) Yards, Healthy - CC-BY |
| Asteraceae | Callistephus | Chinese-Aster |  (c) Linić, Marino - CC-BY | ||
| Asteraceae | Callistephus chinensis | Chinese-Aster | Disturbed areas, persistent or a waif from cultivation. | Native of China and Korea. | (c) Linić, Marino - CC-BY |
| Asteraceae | Calotis |  (c) Nicolson, Kym - CC-BY | |||
| Asteraceae | Calotis cuneifolia | Australian wedgeleaf | Waif in waste areas near wool-combing mill. | Native of Australia. Reported for South Carolina by Nesom (2004d). | (c) Nicolson, Kym - CC-BY |
| Asteraceae | Calyptocarpus | Straggler-daisy, Lawnflower |  (c) Bradley, Keith | ||
| Asteraceae | Calyptocarpus vialis | Straggler-daisy, Lawnflower, Horse-herb, Hierba del Caballo | Disturbed areas, roadsides, lawns, flower-beds. | Native of s. Texas and Mexico. Nesom (2011d) discussed the native distribution of C. vialis and concluded that it was originally native to s. Texas and Mexico. |  (c) Campos, Aidan |
| Asteraceae | Calyptocarpus wendlandii | Disturbed areas. | Native of Central America. Reported for s. Florida (Everglades National Park) by Lange, Bradley, & Sadle [in prep.]. |  (c) González, Oscar - CC-BY-SA | |
| Asteraceae | Carduus | Plumeless Thistle |  (c) Fleming, Gary P. | ||
| Asteraceae | Carduus acanthoides ssp. acanthoides | Plumeless Thistle, Broad-winged Thistle | Disturbed areas, pastures. | Native of Eurasia. |  (c) Fleming, Gary P. |
| Asteraceae | Carduus crispus | Welted Thistle | Disturbed areas, naturalized around large ports. | Native of Eurasia. | |
| Asteraceae | Carduus nutans | Nodding Thistle, Musk Thistle | Fields, roadsides, disturbed areas. | Native of Eurasia. |  (c) Fleming, Gary P. |
| Asteraceae | Carduus pycnocephalus ssp. pycnocephalus | Italian Plumeless-thistle | Pastures and disturbed areas; in waste areas around wool-combing mill, ballast waif. | Native of n. Africa and w. Asia. Scattered occurrences in e. North America, including old ballast collections (FNA). Reported for South Carolina by Nesom (2004d). |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Carduus tenuiflorus | On ballast, waif with collections from se. PA from 1877-1879 (Rhoads & Klein 1993) and from NJ (Kartesz 2020). | Native of s. Europe. | ||
| Asteraceae | Carlina | Carline Thistle |  (c) Schablewski, Kai-Philipp - CC-BY-NC | ||
| Asteraceae | Carlina vulgaris ssp. vulgaris | Carline Thistle | Roadsides and disturbed areas. | Native of Europe and w. Asia. | (c) Schablewski, Kai-Philipp - CC-BY-NC |
| Asteraceae | Carphephorus |  (c) Fleming, Gary P. | |||
| Asteraceae | Carphephorus bellidifolius | Sandhill Chaffhead | Longleaf pine sandhills, rarely in other xeric sandy forests and woodlands. | Se. Virginia to extreme e. Georgia. | (c) Fleming, Gary P. |
| Asteraceae | Carphephorus corymbosus | Flatwood Chaffhead | Wet, mesic, or scrubby flatwoods. Also in sandhills and dry prairies. Occupying wet to dry-mesic sites, usually not in the driest and scrubbiest sites (those dominated by Ceratiola ericoides), but often in areas with deep, somewhat xeric sands, especially scrubby flatwoods with Pinus densa. | Se. South Carolina south to s. Florida. This species was reported as far north as North Carolina by Small (1933); Correa & Wilbur (1969) considered the northern limit of the species to be e. Georgia, but it is now known from as far north as Jasper County, South Carolina. Reports from the Florida Panhandle west of Madison and Taylor counties are legitimate (L.C. Anderson 25,857, Jackson County; R.L. Lazor 4765, Bay County), and represent an interesting disjunction of approx. 170 miles from the nearest record just west of the Suwannee River (A. Franck 3536), although unvouchered (but confirmed) reports have also been verified between these two areas (https://www.inaturalist.org/observations/61334857). |  (c) Bradley, Keith |
| Asteraceae | Carphephorus pseudoliatris | Lavender Lady, Bristleleaf Chaffhead | Pineland seepage bogs and wet pine savannas. | Sw. Georgia and Florida Panhandle west to e. Louisiana, an East Gulf Coastal Plain endemic. |  (c) Ward, Scott G |
| Asteraceae | Carphephorus tomentosus | Carolina Chaffhead | Pine savannas, pine flatwoods, and longleaf pine sandhills. | Se. Virginia south to s. Georgia. |  (c) Jr., Will Stuart |
| Asteraceae | Carthamus | Distaff-thistle |  (c) Lindqvist, Annika - CC-BY | ||
| Asteraceae | Carthamus creticus | Smooth Distaff-thistle | Waste area around wool-combing mill, ballast, other disturbed areas. | Native of s. Europe and n. Africa. Reported by Nesom (2004d) for South Carolina, as C. baeticus. |  (c) Kheloufi, Abdenour - CC-BY |
| Asteraceae | Carthamus tinctorius | Safflower | Under bird feeders as a waif, also an old ballast waif, westwards in our region in disturbed areas. | Native of the e. Mediterranean region. |  (c) Lindqvist, Annika - CC-BY |
| Asteraceae | Centaurea | Star-thistle, Knapweed |  (c) Fleming, Gary P. | ||
| Asteraceae | Centaurea ×gerstlaueri | Meadow Knapweed | Roadsides, disturbed areas. | Native of Europe. Poindexter, Weakley, & Denslow (2011) reported its naturalization in Alleghany Co. North Carolina. | |
| Asteraceae | Centaurea ×varnensis | Disturbed areas, along railroads and in cemeteries. | |||
| Asteraceae | Centaurea aspera | Rough Star-Thistle | Port waif from the 19th century. | Native of Europe. | |
| Asteraceae | Centaurea benedicta | Blessed-thistle | Fields, roadsides, disturbed areas. | Native of Mediterranean Europe and w. and c. Asia. |  (c) Soulard, Augustin - CC-BY |
| Asteraceae | Centaurea calcitrapa | Purple Star-thistle, Caltrops | Roadsides, disturbed areas. | Native of Europe. |  (c) Chetibi, Mehdi - CC-BY |
| Asteraceae | Centaurea cineraria | Dusty Miller, Silver Knapweed, Velvet Centaurea | Probably only a waif. | Native of Mediterranean Europe. | |
| Asteraceae | Centaurea diffusa | Tumble Knapweed, White-flowered Knapweed | Roadsides, disturbed areas. | Native of Europe. | |
| Asteraceae | Centaurea diluta | North African Knapweed | Disturbed areas, probably only a waif in our region. | Native of sw. Europe and n. Africa. | |
| Asteraceae | Centaurea jacea | Brown Knapweed | Roadsides, disturbed areas. | Native of Europe. This species is increasing rapidly in the Virginia Ridge and Valley. Reported for Alleghany County, North Carolina (Poindexter, Weakley, & Denslow 2011). |  (c) Danielson, Erik |
| Asteraceae | Centaurea macrocephala | Waif on ore piles. | Native of w. Asia. |  (c) Hosper, Andre - CC-BY | |
| Asteraceae | Centaurea melitensis | Maltese Star-thistle, Tocalote | Roadsides, disturbed areas, eastwards as a ballast and mill waif (waste areas near wool-combing mills, ballast near old seaports). | Native of Mediterranean Europe and Africa. |  (c) Cannon, Tyler - CC-BY |
| Asteraceae | Centaurea nigra | Black Knapweed, Spanish-buttons | Roadsides, disturbed areas. | Native of Europe. |  (c) Tyler - CC-BY |
| Asteraceae | Centaurea nigrescens | Tyrol Knapweed, Short-fringed Knapweed | Roadsides, disturbed areas. | Native of Europe. This species is increasing rapidly in the n. Virginia Piedmont. Poindexter, Weakley, & Denslow (2011) report the naturalization of C. nigrescens in Alleghany Co. North Carolina. |  (c) Fleming, Gary P. |
| Asteraceae | Centaurea phrygia | Wig Knapweed | Disturbed areas, persistent or spread from seed mixes. | Native of Europe. Reported for Georgia Piedmont in Zomlefer et al. (2018). Reported for Virginia in FNA. |  (c) Kazakova, Natalia - CC-BY |
| Asteraceae | Centaurea scabiosa | Greater Knapweed, Hardheads | Disturbed areas. | Native of Eurasia. Naturalized in Kentucky, Pennsylvania, New Jersey (FNA), and other states in e. North America. | |
| Asteraceae | Centaurea solstitialis | Barnaby's-thistle, Yellow Star-thistle | Roadsides, disturbed areas. | Native of Mediterranean Europe. First reported for South Carolina by Hill & Horn (1997). |  (c) Kieschnick, Sam - CC-BY |
| Asteraceae | Centaurea stoebe ssp. australis | Spotted Knapweed, Bushy Knapweed | Roadsides, disturbed areas. | Native of Europe. |  (c) Cressler, Alan M. |
| Asteraceae | Centipeda |  (c) chiuluan - CC-BY | |||
| Asteraceae | Centipeda minima | Spreading Sneezeweed | Disturbed areas. | Native of Australia. Reported as naturalizing in St. Lucie County, Florida (Wetterer & Hardee 2025). | (c) chiuluan - CC-BY |
| Asteraceae | Centratherum | Larkdaisy |  (c) Obbard, Darren - CC-BY | ||
| Asteraceae | Centratherum punctatum | Larkdaisy | Disturbed areas. | Native of South America. | (c) Obbard, Darren - CC-BY |
| Asteraceae | Chaetopappa | Least-daisy |  (c) Campos, Aidan | ||
| Asteraceae | Chaetopappa asteroides | Tiny Lazy-daisy | Sandy open areas, Catahoula barrens; eastwards in waste areas near wool-combing mills. | Missouri and se. Kansas south to w. Louisiana, s. Texas, and Mexico; reported for South Carolina by Nesom (2004d). |  © Bruce Sorrie |
| Asteraceae | Chaetopappa bellidifolia | Edwards Plateau Lazy-daisy | Rocky and alluvial calcareous areas. | Endemic to Edwards Plateau, Texas, and adjacent provinces to the east and northeast. |  (c) Keith, Eric - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Chaetopappa bellioides | Many-flower Lazy-daisy | Open, calcareous upland sites. | C. Texas, w. Texas, south through s. Texas to Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Jalisco, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas). |  (c) staff, LSU Herbarium |
| Asteraceae | Chaetopappa effusa | Central Texas (primarily Edwards Plateau), west to trans-Pecos Texas. | |||
| Asteraceae | Chaetopappa imberbis | Awnless Lazy-daisy | Deep, loose sand of oak woodlands. | Endemic to se. Texas. | |
| Asteraceae | Chaetopappa modesta | Rio Grande Lazy-daisy | Open sites in brushland. | Rio Grande Valley of s. Texas and adjacent n. Tamaulipas. | |
| Asteraceae | Chamaemelum | Chamomile |  (c) Wang, Zihao - CC-BY | ||
| Asteraceae | Chamaemelum nobile | Garden Chamomile | Persistent from cultivation in gardens. | Native of Europe. |  (c) Wang, Zihao - CC-BY |
| Asteraceae | Chaptalia | Sunbonnets |  (c) Cressler, Alan M. | ||
| Asteraceae | Chaptalia albicans | White Sunbonnets | Pine rocklands, marl prairies. | S. Florida; West Indies; Mexico (Campeche, Chiapas, Quintana Roo, San Luis Potosí, Veracruz, Yucatán) and Central America. |  (c) Bradley, Keith |
| Asteraceae | Chaptalia carduacea | In deep soils, in forests and woodlands. | Sc. Texas south into Mexico. | ||
| Asteraceae | Chaptalia texana | Silverpuff, Heal-and-Draw | Shallow rocky woodlands over limestone. | Sc. and sw. Texas south to c. Mexico. |  (c) Zhang, Hanfei - CC-BY |
| Asteraceae | Chaptalia tomentosa | Sunbonnets, Pineland Daisy, Night-nodding Bog-dandelion, Woolly Sunbonnets | Pine savannas, sandhill seeps, pine flatwoods. | E. North Carolina south s. Florida and west to e. Texas; allegedly disjunct in Hispaniola (Acevedo-Rodríguez & Strong 2012). |  (c) Keim, Mary - CC-BY-NC-SA, permission granted to NCBG |
| Asteraceae | Chevreulia | Chevreulia |  (c) Urbatsch, Lowell | ||
| Asteraceae | Chevreulia acuminata | Sharp-leaved Skyseed | Lawns, other mowed grassy areas. | Native of South America. Well-established in South Carolina and spreading rapidly (K. Bradley, pers.comm. 2022). Reported for North Carolina Coastal Plain (Krings, Banks, & Glasgow 2024), and from Union County in 2024 (Dill & Brei) as well as in the Piedmont by Dill & Brei (Union County, North Carolina; 2024) and through social media the prior year in the adjacent Piedmont County of Mecklenburg. | (c) Urbatsch, Lowell |
| Asteraceae | Chevreulia sarmentosa | Blunt-leaved Skyseed | Established and spreading as a lawn weed (Horry County, SC; K. Bradley, pers.comm. 2021); also in waste areas near wook-combing mill; documented in Union County, NC (B. Dill, pers. comm. 2025; NCU 690118). | Native of s. South America. Reported for South Carolina by Nesom (2004d). |  (c) Parravicini, Luis - CC-BY |
| Asteraceae | Chloracantha |  (c) Romero, Abraham Sánchez - CC-BY | |||
| Asteraceae | Chloracantha spinosa | Spiny-aster, Mexican-devilweed, Devilweed-aster | Riverbanks, swamps, marshes, saline flats. | S. Louisiana, Oklahoma, New Mexico, Arizona, and California south to sc. Mexico (many states); other varieties occur in w. Mexico and southwards to Panama. | (c) Romero, Abraham Sánchez - CC-BY |
| Asteraceae | Chondrilla | Skeleton-weed |  (c) Baratta, Eric - CC-BY | ||
| Asteraceae | Chondrilla juncea | Skeleton-weed, Gum-succory | Cultivated fields, disturbed areas, roadsides. | Native of Europe. | (c) Baratta, Eric - CC-BY |
| Asteraceae | Chromolaena |  (c) Horn, Jay | |||
| Asteraceae | Chromolaena frustrata | Cape Sable Thoroughwort | Coastal strands, coastal rock barrens, rockland hammock edges, buttonwood woodlands. | Endemic to s. peninsular Florida. | |
| Asteraceae | Chromolaena ivifolia | Ivy-leaf Thoroughwort | Prairies and fields, disturbed areas. | S. Florida, Panhandle Florida, s. Alabama, s. Mississippi, Texas; West Indies, Mexico (Chiapas, Oaxaca, Querétaro, San Luis Potosí, Veracruz), Central America, and South America (Woods, Diamond, & Searcy 2003; Kartesz 1999; Nesom 2006ll). |  (c) McLaurin, Lauren - CC-BY |
| Asteraceae | Chromolaena odorata | Crucita, Jack-in-the-Bush, Jackney Bush | Hammocks, thickets, disturbed areas. | Peninsular Florida; West Indies; s. Texas south into Mexico, Central America, and South America. | |
| Asteraceae | Chrysanthemum | Chrysanthemum |  (c) Yj - CC-BY | ||
| Asteraceae | Chrysanthemum ×morifolium | Garden Chrysanthemum | Cultivated as an ornamental, persistent or perhaps naturalized at widely scattered locations. | Native of e. and se. Asia. | |
| Asteraceae | Chrysogonum | Green-and-gold |  (c) Fleming, Gary P. | ||
| Asteraceae | Chrysogonum australe | Gulf Coast Green-and-gold | Moist to fairly dry woodlands and forests. | Florida Panhandle and sc. and sw. Georgia west to e. Louisiana. |  (c) Diamond, Alvin - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Chrysogonum repens | Carolina Green-and-gold | Moist to fairly dry woodlands and forests. | Ne. South Carolina, sc. North Carolina, nw. North Carolina, sw. Virginia, ne. Tennessee., c. and w. West Virginia, and se. Ohio, south to e. Georgia, c. Georgia, and ec. Alabama. |  (c) Fleming, Gary P. |
| Asteraceae | Chrysogonum species 1 | Ocoee Green-and-gold | Moist to fairly dry woodlands and forests. | Tennessee and South Carolina south to Georgia. |  © Ryan Schiller |
| Asteraceae | Chrysogonum virginianum | Northern Green-and-gold, Virginia Green-and-gold | Moist to fairly dry woodlands and forests. | E. Virginia, sc. Pennsylvania, and e. West Virginia, south to se. North Carolina, nc. South Carolina, nw. North Carolina, and sw. Virginia. |  (c) Fleming, Gary P. |
| Asteraceae | Chrysoma | Woody Goldenrod |  (c) Marcum, Paul | ||
| Asteraceae | Chrysoma pauciflosculosa | Woody Goldenrod | Coastal dunes, xeric sands of very barren, open, white-sand sandhills, fluvial dunes, and less commonly in the driest habitats in the fall-line Sandhills, on the Gulf Coast sometimes becoming more abundant in sandy sites with some disturbance. | S. North Carolina south to n. Florida and west to s. Mississippi. The single c. Florida record (Lake County; R. Mulholland, pers. comm., 2023) seems questionable (but not impossible) as a natural occurrence. |  (c) Marcum, Paul |
| Asteraceae | Chrysopsis | Golden-aster |  (c) Ward, Scott G | ||
| Asteraceae | Chrysopsis cruiseana | Cruise's Goldenaster | Coastal sand dunes. | Florida Panhandle. |  (c) Horn, Jay |
| Asteraceae | Chrysopsis delaneyi | DeLaney’s Goldenaster | Yellow sand longleaf pine sandhills and Florida scrub. | Florida peninsula (Lake and Orange counties south to Broward County). |  (c) Ward, Scott G |
| Asteraceae | Chrysopsis floridana | Florida Goldenaster | Florida scrub. | Endemic to wc. peninsular Florida | (c) Ward, Scott G |
| Asteraceae | Chrysopsis godfreyi | Godfrey's Goldenaster | Coastal sand dunes. | Florida Panhandle and s. Alabama. |  (c) Horn, Jay |
| Asteraceae | Chrysopsis gossypina | Cottonleaf Goldenaster | Longleaf pine sandhills, coastal dunes, Florida scrub, other dry sandy places. | Se. Virginia south to c. peninsular Florida and sw. Georgia. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Chrysopsis highlandsensis | Highlands Goldenaster | Florida scrub and scrubby flatwoods. | Endemic to c. peninsular Florida. |  (c) Ward, Scott G |
| Asteraceae | Chrysopsis hyssopifolia | Hyssopleaf Goldenaster | Longleaf pine sandhills, Florida scrub, dry pine flatwoods, other dry sands. | N. Florida peninsula west to Florida Panhandle, s. Alabama, s. Mississippi, and se. Louisiana |  (c) Horn, Jay |
| Asteraceae | Chrysopsis lanuginosa | Lynn Haven Goldenaster | Longleaf pine sandhills. | Endemic to Florida Panhandle and nearby s. Alabama (Diamond 2020). |  (c) Horn, Jay |
| Asteraceae | Chrysopsis latisquamea | Longleaf pine sandhills. | Ne. Florida south to c. peninsular Florida. |  (c) Horn, Jay | |
| Asteraceae | Chrysopsis linearifolia | Florida scrub, longleaf pine sandhills. | Endemic to Florida Panhandle and s. Alabama. |  (c) Doby, Joshua - CC-BY-NC, permission granted to NCBG | |
| Asteraceae | Chrysopsis mariana | Maryland Golden-aster | Longleaf pine sandhills, dry pine flatwoods, dry forests and woodlands, roadsides, other dry habitats. | Se. New York and Rhode Island (Block Island) west to se. Ohio, c. Kentucky, w. Tennessee, south to c. peninsular Florida and se. Texas. |  (c) Fleming, Gary P. |
| Asteraceae | Chrysopsis scabrella | Longleaf pine sandhills, Florida scrub, disturbed sandy soils. | Florida peninsula; also disjunct at scattered sites in the Carolinas, where uncertainly native. |  (c) Ward, Scott G - CC-BY | |
| Asteraceae | Chrysopsis species 1 [=dressii] | Dress’s Goldenaster | Longleaf pine sandhills. | Florida peninsula (Alachua County southwards). |  (c) Horn, Jay |
| Asteraceae | Chrysopsis subulata | Scrub Golden-aster | Longleaf pine flatwoods, Florida scrubby flatwoods. | N. Florida peninsula to s. Florida. |  (c) Keim, Mary - CC-BY-NC-SA, permission granted to NCBG |
| Asteraceae | Chrysopsis trichophylla | Longleaf pine sandhills, sandy roadsides, coastal dunes. |  © Richard LeBlond | ||
| Asteraceae | Cicerbita |  (c) Danielson, Erik | |||
| Asteraceae | Cicerbita muralis | Wall-lettuce | Disturbed areas. | Native of Europe. | |
| Asteraceae | Cichorium | Chicory |  (c) Cressler, Alan M. | ||
| Asteraceae | Cichorium endivia | Endive | Gardens, roadsides, fields. | Native of Mediterranean ne. Africa. | |
| Asteraceae | Cichorium intybus | Chicory, Succory, Blue-sailors, Witloof | Roadsides, fencerows, vacant lots, disturbed areas. | Native of Europe. See Anderson (2007) for Florida record. | (c) Cressler, Alan M. |
| Asteraceae | Cirsium | Thistle |  (c) Bradley, Keith | ||
| Asteraceae | Cirsium altissimum | Tall Thistle | Pastures, woodlands, thickets. | Massachusetts west to North Dakota, south to Panhandle Florida (Jackson County) and e. Texas. | (c) Bradley, Keith |
| Asteraceae | Cirsium arvense | Canada Thistle, Field Thistle | Pastures, disturbed areas. | Native of Eurasia. |  (c) Gwaltney, John |
| Asteraceae | Cirsium carolinianum | Carolina Thistle, Spring Thistle, Prairie Thistle | Prairies and open woodlands, primarily over mafic, ultramafic, or calcareous rocks. | N. Virginia west to s. Ohio and Missouri, south to w. South Carolina, n. Georgia, Alabama, and Texas. In the eastern part of the Southeast, C. carolinianum seems to be restricted to prairies and woodlands (or maintained powerline or road rights-of-way) over circumneutral rocks and soils, in situations which were oak savannas or even prairies prior to fire suppression. |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Cirsium discolor | Field Thistle | Pastures, woodlands, thickets. | Québec west to Manitoba, south to North Carolina, Mississippi, Louisiana, and Kansas. |  (c) Fleming, Gary P. |
| Asteraceae | Cirsium engelmannii | Engelmann's Thistle | Prairies, oak savannas. | Sw. Arkansas and s. Oklahoma south to nw. Louisiana and e. and c. Texas. |  (c) Hill, Sonnia |
| Asteraceae | Cirsium hillii | Hill's Thistle | Dry prairies, glades and barrens over calcareous substrates. | Ontario, Michigan, Wisconsin, and Minnesota south to wc. Indiana, c. Illinois, and ne. Missouri. |  (c) Gunnar, Aaron - CC-BY |
| Asteraceae | Cirsium horridulum var. horridulum | Common Yellow Thistle, Bull Thistle, Chardron (frc), Chardron cochon (frc) | Roadsides, woodlands, pine savannas. | Maine south to Florida, west to Texas, mostly on the Coastal Plain and adjacent provinces; also Mexico and Bahamas. |  (c) Bradley, Keith |
| Asteraceae | Cirsium horridulum var. megacanthum | Bigspine Thistle | Moist ground. | Alabama and Panhandle Florida west to Texas and Oklahoma. | |
| Asteraceae | Cirsium horridulum var. vittatum | Southern Yellow Thistle, Pineland Thistle | Wet pine savannas. | Se. North Carolina south to s. peninsular Florida and Panhandle Florida, west to s. Mississippi and e. Louisiana; Bahamas; West Indies. |  (c) Weakley, Alan |
| Asteraceae | Cirsium lecontei | LeConte's Thistle | Wet loamy pine savannas, seepage bogs. | E. North Carolina south to Panhandle Florida, west to Louisiana. |  (c) Gibson, Andrew Lane - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Cirsium muticum | Swamp Thistle | Swamps, wet thickets, woodlands, seepage slopes, wet prairies, meadows. | Newfoundland and Labrador (Newfoundland) west to Saskatchewan, south to Delaware, North Carolina, Tennessee, and Missouri, and less commonly south to Florida, Alabama (Diamond & Woods 2009), and Texas. |  (c) Ward, Scott G |
| Asteraceae | Cirsium nuttallii | Nuttall's Thistle, Coastal Tall Thistle | Longleaf pine savannas, roadsides, pastures, wet hammocks, dry hammocks, prairies. | Se. Virginia south to s. Florida, west to Louisiana and Arkansas. Reported for the first time from North Carolina by Krings, Westbrooks, & Lloyd (2002). |  (c) Bradley, Keith |
| Asteraceae | Cirsium ochrocentrum | Yellow-spine Thistle | Dry, gravelly or sandy soils of prairies, pastures, open disturbed areas. | South Dakota, Wyoming, Nevada, and Oregon south to ec. Texas, w. Texas, New Mexico, Arizona, and n. Mexico (Baja California, Chihuahua, Coahuila, Durango, Sonora, Zacatecas). | |
| Asteraceae | Cirsium palustre | Marsh Thistle | Damp forests and fields. | Native of Eurasia. | |
| Asteraceae | Cirsium pumilum | Pasture Thistle | Pastures, thickets, and woodlands, perhaps especially over mafic rocks. | S. Maine west to w. New York, south to Delaware, and w. North Carolina. |  (c) Fleming, Gary P. |
| Asteraceae | Cirsium repandum | Sandhill Thistle | Longleaf pine sandhills, other dry sandy habitats. | Se. Virginia south to e. Georgia, nearly endemic to the Carolinas. Similar in distribution to Vaccinium crassifolium, Carphephorus bellidifolius, and Baptisia cinerea, which are all locally abundant endemic indicators of Carolina pinelands. |  (c) Bradley, Keith |
| Asteraceae | Cirsium texanum | Texas Thistle | Woodlands, pine savannas, pastures, fields, roadsides. | Oklahoma and New Mexico south through Texas to Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas). | |
| Asteraceae | Cirsium undulatum | Wavy-leaf Thistle | Dry prairies, pastures, disturbed areas. | Manitoba west to British Columbia, south to sc. Texas, New Mexico, Arizona, California, and Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Sonora). |  (c) Campos, Aidan |
| Asteraceae | Cirsium virginianum | Virginia Thistle | Moist to fairly dry pine savannas, bogs. | S. New Jersey south to ne. Florida, primarily on the Coastal Plain (rarely in the outer or lower Piedmont). |  (c) Bradley, Keith |
| Asteraceae | Cirsium vulgare | Bull Thistle | Meadows, pastures, and disturbed areas. | Native of Europe. |  (c) Joseph, Aubert - CC-BY |
| Asteraceae | Cladanthus |  (c) Olivares, Asiel - CC-BY | |||
| Asteraceae | Cladanthus mixtus | Moroccan Chamomile | Disturbed areas. | Native of Mediterranean Europe and n. Africa. | (c) Olivares, Asiel - CC-BY |
| Asteraceae | Clappia | Clappia |  (c) Hernández, Alexis López - CC-BY | ||
| Asteraceae | Clappia suaedifolia | Clapp-Daisy, Clappia | Subsaline, poorly-drained clay flats. | S. Texas south to ne. Mexico (Nuevo León, Tamaulipas) |  (c) Hernández, Alexis López - CC-BY |
| Asteraceae | Conoclinium | Mistflower |  (c) Sorrie, Bruce A. - CC-BY | ||
| Asteraceae | Conoclinium betonicifolium var. betonicifolium | Betony-leaf Mistflower | Brackish marshes. | Se. Texas to s. Texas, south to s. Mexico. |  (c) Campos, Aidan |
| Asteraceae | Conoclinium betonicifolium var. integrifolium | ||||
| Asteraceae | Conoclinium coelestinum | Mistflower, Ageratum, Tête de femme bleu (frc) | Streambanks, moist to wet disturbed areas, especially ditches, probably more common than formerly. | New Jersey west to Illinois, c. Missouri, se. Kansas, and Oklahoma, south to s. Florida and c. Texas; also in Cuba, and scattered farther north (as in New York, n. Ohio, and n. Indiana) probably as escapes from cultivation. |  (c) Campos, Aidan |
| Asteraceae | Conoclinium dichotomum | Chapman's Mistflower, Florida Mistflower | Moist open areas, ditches. | Peninsular Florida and scattered along the Gulf Coast; possibly Cuba. | |
| Asteraceae | Conoclinium dissectum | Pinked Mistflower, Palmleaf Mistflower | Ditches, depressions, upland areas, also cultivated and persistent or spreading. | Native to s., sc., and w. Texas, s. Arizona south into n. Mexico. | |
| Asteraceae | Coreopsis | Coreopsis, Tickseed |  (c) Cressler, Alan M. | ||
| Asteraceae | Coreopsis aristulata | Wet pine savannas, underlain by calcareous rock. | Known from several sites on the Onslow-Pender county (North Carolina) line, where growing with other narrow endemics, such as Thalictrum cooleyi, Carex lutea, Allium species 1, and Scleria bellii. |  (c) LeBlond, Richard | |
| Asteraceae | Coreopsis auriculata | Lobed Coreopsis, Mouse-ear Coreopsis, Dwarf Coreopsis | Moist slopes and woodlands. | C. and ne. Virginia, s. West Virginia, and Kentucky south to Mississippi, Alabama, and Georgia. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Coreopsis bakeri | Florida Glade Coreopsis | Calcareous glades. | Endemic to Jackson County, Florida. |  (c) Griffith, Floyd A. |
| Asteraceae | Coreopsis basalis | Texas Coreopsis | Sandy roadsides and fields. | Probably native only west of the Mississippi River (s. Arkansas and s. Oklahoma south to se. Louisiana and s. Texas), now distributed across the Coastal Plain from Texas east to Florida and north to North Carolina. |  (c) Campos, Aidan |
| Asteraceae | Coreopsis falcata | Pool Coreopsis | Peat bogs, very wet savannas, ditches and borrow pits in savannas. | The species is endemic to the Coastal Plain of se. Virginia (City of Chesapeake), e. North Carolina, e. South Carolina, and e. Georgia; disjunct in Oconee County, South Carolina and Henderson County, North Carolina. First reported for Virginia by Wieboldt et al. (1998). |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Coreopsis floridana | Florida Coreopsis | Mesic to wet pine flatwoods, longleaf pine flatwoods, wet disturbed areas, mixed herbaceous seepage slopes, wet prairies. | Florida Panhandle south to s. Florida (largely absent from ne. Florida). Two vouchers initially labeled as C. floridana in Tift and Grady counties, Georgia (S. Carr 6248; R. Kral 94508) have both been annotated as C. gladiata by A. Franck and D. Spaulding, respectively (S. Ward, pers. comm.). This species; therefore, appears to be a true Florida endemic, having never been legitimately vouchered from Georgia. |  (c) Ward, Scott G |
| Asteraceae | Coreopsis gladiata | Seepage Coreopsis | Wet pine savannas, wet pine flatwoods, sandhill seepage bogs, pitcher plant bogs, cataract bogs. | Se. North Carolina south to c. Florida and west to s. Mississippi; scattered inland as a disjunct in montane (and sometimes uppermost piedmontane) sw. North Carolina, nw. South Carolina, and n. Georgia. |  (c) Bradley, Keith |
| Asteraceae | Coreopsis grandiflora var. grandiflora | Large-flowered Coreopsis | In thin soils of rock outcrops, especially granitic flatrocks and granite domes. | Var. grandiflora ranges from c. Georgia and w. South Carolina west to e. Texas and e. Oklahoma, very scattered in distribution; it differs from var. harveyana in having the leaf divisions 2-6 mm wide (vs. 0.5-2 mm wide). |  (c) Keesling, Jim - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Coreopsis grandiflora var. harveyana | Large-flowered Coreopsis | Sandy woodlands, disturbed areas. | Var. harveyana is the most abundant variety of the C. grandiflora complex, probably originally endemic to Arkansas, n. Louisiana, ne. Texas, Oklahoma, e. Kansas, and s. and c. Missouri, but now scattered eastward to Indiana, North Carolina, and South Carolina. |  (c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG |
| Asteraceae | Coreopsis grandiflora var. inclinata | Ketona Tickseed, Ketona Coreopsis | Dolomite glades. | Endemic to dolomitic Ketona glades of c. Alabama (Allison & Stevens 2001). |  (c) Cressler, Alan M. |
| Asteraceae | Coreopsis grandiflora var. longipes | Sandy woods. | Var. longipes (Hooker) Torrey & Gray is endemic to e. Texas and s. Oklahoma. |  (c) Sasan, Kimberlie - CC-BY-ND | |
| Asteraceae | Coreopsis grandiflora var. saxicola | Stone Mountain Coreopsis | Granitic and sandstone outcrops. | C. Georgia, ec. Alabama, Mississippi, and nc. Arkansas. | (c) Cressler, Alan M. |
| Asteraceae | Coreopsis integrifolia | Chipola Dye-flower | Banks and floodplains of small blackwater streams (especially over limestone), edges of swamp forests bordering longleaf pinelands or bordering brackish marshes, floodplain-adjacent roadsides and pipeline rights-of-way. | Se. South Carolina south to Florida Panhandle, apparently rare throughout its range. |  (c) Bradley, Keith |
| Asteraceae | Coreopsis intermedia | Goldenwave Tickseed | In deep sandy soils in openings of post oak woodlands, longleaf pine and shortleaf pine woodlands, and other dry sandy woodlands. | Sw. Arkansas south to w. Louisiana and e. Texas. |  (c) Hill, Sonnia |