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FamilyScientific Name Common NameHabitatDistributionImage
AsteraceaeHelianthus agrestisSoutheastern SunflowerFloodplain marshes, mucky areas in pine flatwoods.S. GA south to s. FL.image of plant
AsteraceaeHelianthus angustifoliusNarrowleaf SunflowerPine savannas, ditches, marshes, other wet habitats.Primarily Coastal Plain, from Long Island, NY south to c. peninsular FL and west to TX, irregularly inland to OH, IN, and MO.image of plant
AsteraceaeHelianthus annuusCommon Sunflower, MirasolDisturbed areas, often cultivated in gardens, sometimes cultivated in fields.Native of the Plains states south into Mexico. This is the common cultivated sunflower grown for its flowers, seeds, and oil.image of plant
AsteraceaeHelianthus argophyllusSilverleaf SunflowerDunes and disturbed sandy soils.Native of s. and se. TX. Heiser et al. (1969) noted a collection from NC, but stated their uncertainty as to its establishment. H. argophyllus is well-established near Captain Charlie's on Bald Head Island, Brunswick County, where it has apparently persisted and spread over the last 50 years (at least).image of plant
AsteraceaeHelianthus atrorubensAppalachian SunflowerDry soils of rocky, sandy, or clayey woodlands and roadbanks.N. VA west to w. TN, and south to c. GA, Panhandle FL, AL, and se. LA.image of plant
AsteraceaeHelianthus carnosusFlatwoods SunflowerWet pine flatwoods, wet prairies.Endemic to ne. FL (Duval, Clay, St. Johns, Clay, Putnam, Flagler, and Volusia counties).image of plant
AsteraceaeHelianthus ciliarisTexas Blueweed, Blueweed SunflowerAlong streams and canals.KS west to CA, south to s. FL, NM, AZ, and Mexico (CHH, COA, DGO, NLE, SLP, SON, TAM, ZAC).image of plant
AsteraceaeHelianthus debilis ssp. cucumerifoliusCucumber-leaf SunflowerSandy soils of fields and roadsides.Native from sw. GA and FL west to c. TX.image of plant
AsteraceaeHelianthus debilis ssp. debilisEast Florida Beach SunflowerSandy beaches and dunes.East side of the FL peninsula from St. Johns County south to Monroe County, FL. Disjunct (probably adventive), at Pawleys Island, Georgetown County, SC.image of plant
AsteraceaeHelianthus debilis ssp. silvestrisLongleaf pine woodlands, other dry woodlands.Endemic to e. TX.image of plant
AsteraceaeHelianthus debilis ssp. tardiflorusGulf Coast Beach SunflowerSandy beaches, dry pinelands.GA, FL, AL, and MS.image of plant
AsteraceaeHelianthus debilis ssp. vestitusWest Florida Beach SunflowerCoastal dunes.W. coast of peninsular FL, Hernando County south to Lee County.
AsteraceaeHelianthus decapetalusForest SunflowerMesic woodlands and forests, oak savannas.ME and QC west to WI and IA, south to GA and MO.image of plant
AsteraceaeHelianthus divaricatusWoodland SunflowerMesic to dry woodlands and forests, forest edges.ME, QC, ON, and IA south to Panhandle FL, LA, and OK.image of plant
AsteraceaeHelianthus eggertiiEggert's Sunflower, Tennessee SunflowerLimestone and diabase barrens.Sc. KY, c. TN, n. AL, and sc. AL (Coastal Plain); disjunct in nc. SC.image of plant
AsteraceaeHelianthus floridanusFlorida SunflowerWet pine savannas and pocosin edges.A Southeastern Coastal Plain species: se. NC south to c. peninsular FL, and west to se LA.image of plant
AsteraceaeHelianthus giganteusTuberous Sunflower, Swamp SunflowerRoadsides, woodland edges, bog edges, moist thickets, ditches.NB and ME west to MN, south to n. SC, n. GA, e. and c. TN, c. KY, n. IN, n. IL, and WI.image of plant
AsteraceaeHelianthus glaucophyllusWhiteleaf SunflowerMoist forests, woodlands, and woodland edges, at medium elevations, mostly from 1000-1500 m (but sometimes lower), generally flowering only when in a canopy gap (as caused by a tree-fall) or along banks of narrow roads.A narrow Southern Appalachian endemic: w. NC, nw. SC, and ne. TN (Chester, Wofford, & Kral 1997)image of plant
AsteraceaeHelianthus grosseserratusSawtooth SunflowerPrairies, fens, pastures, roadsides, disturbed areas.The original range of this species was apparently centered in OH, IN, IL, IA, and MO, but its exact extent is obscured by its subsequent spread. Reported for NC by Matthews & Mellichamp (1989).image of plant
AsteraceaeHelianthus heterophyllusSavanna SunflowerWet pine savannas, seepage bogs.A Southeastern Coastal Plain endemic: se. NC south to Panhandle FL and west to se. LA.image of plant
AsteraceaeHelianthus hirsutusHairy SunflowerWoodlands and other sunny or semi-sunny habitats.PA and MN, south to n. FL and TX.image of plant
AsteraceaeHelianthus laetiflorusFields, woodland edges, disturbed areas; introduced from farther west.Widely scattered in e. and c. North America. Perhaps a naturally hybrid-derived species in the Midwest, and introduced eastwards.image of plant
AsteraceaeHelianthus laevigatusShale-barren Sunflower, Smooth SunflowerOn dry, rocky or shaly soils, on roadbanks, powerline rights-of-way, open woodlands, in the Carolinas nearly limited to the Carolina Slate Belt.The primary range of H. laevigatus is in the mountains of c. and w. VA and e. WV, from whence it is disjunct to a few areas in the Piedmont of NC and SC, most notably the Carolina Slate Belt in Montgomery and Stanly counties, NC.image of plant
AsteraceaeHelianthus longifoliusLongleaf SunflowerSandstone and granite glades and woodlands, loamy to xeric longleaf pine sandhills.This species is apparently rare, occurring in ne. AL, nw. GA, south to sw. GA.image of plant
AsteraceaeHelianthus maximilianiiMaximilian SunflowerMoist roadsides and disturbed areas.MI and MB west to BC and south to TX and Mexico (CHH, COA, NLE); introduced in the East.image of plant
AsteraceaeHelianthus microcephalusSmall-headed Sunflower, Small Wood SunflowerDry woodlands and roadbanks.PA west to MI, south to Panhandle FL and se. LA.image of plant
AsteraceaeHelianthus mollisAshy Sunflower, Gray SunflowerCalcareous prairies and barrens, disturbed places.Apparently native of the Midwest, centered in IN, IL, MO, AR, c. TN, and w. KY, its original distribution obscured by its subsequent spread. Native in nw. GA.image of plant
AsteraceaeHelianthus nuttallii ssp. nuttalliiNuttall's SunflowerMoist open places, ditches, roadsides.
AsteraceaeHelianthus occidentalis ssp. occidentalisNaked-stem SunflowerRocky or sandy flood-scoured riversides, dry hammocks (in FL).MD and DC west to MN, and south to w. NC, n. GA, Panhandle FL, and TX.image of plant
AsteraceaeHelianthus occidentalis ssp. plantagineusPlantain-leaf SunflowerDry, open areas on sandstone outcrops and glades, Catahoula sandstone glades, Coastal Plain prairies.Wc. AR south to w. LA and e. TX.
AsteraceaeHelianthus pauciflorus ssp. pauciflorusStiff SunflowerPrairies, disturbed areas.ON and MI west to SD and SK, south to w. KY, n. MS, and TX. Reported for VA by Fernald (1950) under the name H. laetiflorus var. rigidus and for nc. GA by Jones & Coile (1988) under the name H. rigidus.image of plant
AsteraceaeHelianthus pauciflorus ssp. subrhomboideusSubrhomboidal SunflowerPastures, roadsides, and along railroads.ON, MI. west to BC, south to IN, MO, OK, and w. TX.image of plant
AsteraceaeHelianthus petiolaris ssp. petiolarisPlains SunflowerPrairies, sandy open areas, eastwards in disturbed areas in sandy soil.ON west to AB, south to TX and NM; also eastwards and westwards of that range as apparent introductions.image of plant
AsteraceaeHelianthus porteriConfederate DaisyIn shallow soils over granite on low-elevation granite domes or flatrocks.A Piedmont endemic: nw. SC south to GA and ec. ALimage of plant
AsteraceaeHelianthus praecox ssp. praecoxTexas Sunflower, Galveston SunflowerSandy areas.Endemic to se. TX.
AsteraceaeHelianthus praecox ssp. runyoniiCoastal areas and inland in dry, open, sandy sites.S. TX.
AsteraceaeHelianthus radulaRoundleaf Sunflower, Rayless SunflowerLongleaf pine sandhills and dryish savannas, and dry pine flatwoods.S. SC south to s. peninsular FL and west to se. LAimage of plant
AsteraceaeHelianthus resinosusResinous SunflowerWoodlands, thickets, roadsides.Nc. and w. NC south to Panhandle FL and west to MS.image of plant
AsteraceaeHelianthus salicifoliusWillowleaf SunflowerCalcareous prairies.W. MO and e. KS south to nc. TX.image of plant
AsteraceaeHelianthus schweinitziiSchweinitz's SunflowerClayey soils of woodlands and roadsides, in areas formerly with post oak-blackjack oak savannas, xeric oak-pine woodlands, or "Piedmont prairies", now primarily on mowed road or powerline rights-of-way.Piedmont of nw. NC and nc. SC, primarily within 100 km of Charlotte, NCimage of plant
AsteraceaeHelianthus silphioidesWoodland edges.S. KY, s. IL, and s. MO south to AL, MS, LA, and e. OK.image of plant
AsteraceaeHelianthus simulansMuck SunflowerWet soils, ditches, roadsides.Native from SC south to c. peninsular FL, FL Panhandle, and west to LA and e. TX; now spread more widely by horticultural use.image of plant
AsteraceaeHelianthus smithiorumSmith's SunflowerDry forests and woodlands.Known from n. GA, e. AL, and se. TN.image of plant
AsteraceaeHelianthus species 1Endemic to the Sequatchie Valley of Marion County, TN, and Jackson County, AL, known from 3 current populations.
AsteraceaeHelianthus species 2Waccamaw SunflowerLoamy pine savannas.Endemic to the middle Coastal Plain of se. NC and e. SC.image of plant
AsteraceaeHelianthus strumosusRoughleaf SunflowerWoodlands and roadsides.ME, MN, and KA south to ne. FL, Panhandle FL, and TX.image of plant
AsteraceaeHelianthus tuberosusJerusalem ArtichokeNative in rich bottomlands and along streams, disturbed areas, cultivated in gardens for the edible tubers.Native distribution is unclear, perhaps OH, MI, MN, ND, and e. MT south to w. TN, LA, and TX.image of plant
AsteraceaeHelianthus verticillatusWhorled SunflowerSeasonally wet to moist calcareous prairies.Nw. GA, ne. AL, w. TN, and n. MS; disjunct in sw. VA (where uncertainly native; Virginia Botanical Associates 2023). The species has become a bit popular (niche market) as an ornamental and may be expected to be encountered outside its (admittedly poorly understood) native range.image of plant

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