| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Fabaceae | Astragalus austrinus var. austrinus | Rio Fronteras Milkvetch | Occurring on a wide variety of substrates in dry open areas. | S. Kansas, s. Colorado, and n. Arizona south to s. Texas and Mexico. |  (c) Hill, Sonnia |
| Fabaceae | Astragalus austrinus var. trichocarpus | Hairypod Milkvetch | Open woodlands, fields, prairies, and roadsides, typically on sandy soil and less frequently on limestone. | Oklahoma and New Mexico south to e. Texas, s. Texas, and Mexico. | |
| Fabaceae | Astragalus bibullatus | Pyne's Ground-plum | Calcareous glades. | Endemic to c. Tennessee (Barneby & Bridges 1987). |  (c) Cressler, Alan M. |
| Fabaceae | Astragalus brazoensis | Brazos Milkvetch | Coastal prairies, stream margins, roadsides, and other disturbed areas. | S. and se. Texas and ne. Mexico (Tamaulipas). | |
| Fabaceae | Astragalus canadensis var. canadensis | Canada Milkvetch | Forests, woodlands, streambanks, rocky slopes and bluffs, prairies. | Ranging through much of North America, from Québec and Hudson Bay west to British Columbia, south to Georgia, Texas, New Mexico, and California; also apparently disjunct in Siberia. |  (c) Fleming, Gary P. |
| Fabaceae | Astragalus chinensis | Chinese Milkvetch | Meadows, bottomlands, riverbanks. | Native of Asia (China, Russian Far East); introduced in Idaho and Oklahoma, in our region known only from a 1940 collection in Payne Co., Oklahoma (Ward 275 – OKLA). | |
| Fabaceae | Astragalus crassicarpus var. berlandieri | Berlandier's Ground-plum | Open gravelly areas over limestone, mudstone, or sandstone and prairies. | E. and c. Texas. |  (c) Hill, Sonnia |
| Fabaceae | Astragalus crassicarpus var. crassicarpus | Purple Ground-plum | Prairies, sandstone outcrops, rocky woodlands, roadsides. | Wisconsin, Minnesota, Manitoba, Saskatchewan, Alberta south to Arkansas, sc. Texas, New Mexico, and Mexico. |  (c) Campos, Aidan |
| Fabaceae | Astragalus distortus var. distortus | Ozark Milkvetch, Bent Milkvetch | Shale barrens and other dry, shaley places, westwards in a variety of dry open and wooded habitats. | A. distortus is interpreted by Barneby (1964) (and followed by Cronquist [1991] and Isely [1990]) to consist of 2 varieties: var. distortus, occurring in the s. Midwest from Illinois, Missouri, and Oklahoma south to Mississippi, Louisiana, and Arkansas, and disjunct in n. and sc. Virginia, e. West Virginia, and w. Maryland, and var. engelmannii (Sheldon) M.E. Jones, of Texas and ne. Louisiana |  (c) Sorrells, Ryan - CC-BY |
| Fabaceae | Astragalus distortus var. engelmannii | Engelmann's Milkvetch | Open pine or oak woodlands and prairies on rocky, gravelly, or calcareous substrates. | Arkansas, Texas, and w. Louisiana; disjunct eastward in Mississippi (?) (NatureServe 2007). |  (c) Hill, Sonnia |
| Fabaceae | Astragalus emoryanus var. emoryanus | Emory's Milkvetch | Thornscrub, mesquital, arroyos, and lakeshores. | S. Texas, w. Texas, New Mexico, and s. Utah south to Mexico; in our region only in the Lower Rio Grande Valley. | |
| Fabaceae | Astragalus glycyphyllos | Licorice Milkvetch, Fitsroot | Waif on ballast. | Native of Europe. |  (c) Hacker, Patrick - CC-BY |
| Fabaceae | Astragalus gracilis | Slender Milkvetch | Calcareous soils, in prairies or juniper savannas. | North Dakota, Saskatchewan, and Montana south to sc. Oklahoma, Panhandle Texas, and c. New Mexico. | |
| Fabaceae | Astragalus hamosus | European Milkvetch | Waif on ore piles (Reed 1964). | Native of Mediterranean Europe, n. Africa, and w. Asia; only recorded as a waif in Maryland in 1954. |  (c) Medina, Rafael - CC-BY |
| Fabaceae | Astragalus leptocarpus | Slim-pod Milkvetch | Sandy soils in open pine forests, oak woodlands, mesquital, coastal prairies, and dunes. | Sw. Arkansas and s. Oklahoma south to sw. Louisiana and e. and s. Texas. |  (c) Hill, Sonnia |
| Fabaceae | Astragalus lindheimeri | Lindheimer's Milkvetch | Rocky or sandy prairies, hills, bluffs, sandstone outcrops, open disturbed areas. | C. and w. Oklahoma south to e., sc., and w. Texas. | |
| Fabaceae | Astragalus lotiflorus | Lotus Milkvetch | Prairies, bluffs, wooded canyons, often on limestone or sandstone. | Minnesota, Manitoba, Saskatchewan, Alberta, and British Columbia south to Texas and New Mexico. |  (c) Hill, Sonnia |
| Fabaceae | Astragalus macilentus | Rocky and gravelly open areas. | C. and w. Texas (Kartesz 2022). | ||
| Fabaceae | Astragalus michauxii | Sandhill Milkvetch, Michaux's Milkvetch | Longleaf pine sandhills, in loamy, clayey, or sandy areas. | Sc. North Carolina south through South Carolina to Georgia, a Southeastern Coastal Plain endemic (reports from Alabama and Florida are in error). |  (c) Bradley, Keith |
| Fabaceae | Astragalus missouriensis var. missouriensis | Missouri Milkvetch | Prairies, bluffs, ravines, and open plains on limestone, shale, sandstone, or gypsum substrates. | Manitoba, Saskatchewan, and Alberta south to c. Oklahoma, w. and nw. Texas (disjunct eastwards in Bell County), New Mexico, and Arizona. | |
| Fabaceae | Astragalus mollissimus var. mollissimus | Woolly Locoweed | Prairies, hillsides, stream valleys in generally sparsely vegetated areas. | Sw. South Dakota and se. Wyoming south to nc. Texas (Tarrant & Wise counties), w. Texas, and New Mexico. |  (c) Cressler, Alan M. |
| Fabaceae | Astragalus neglectus | Cooper's Milkvetch | Lakeshores, riverbanks, shady ravines, calcareous woodlands and barrens, often over dolostone or limestone. | Se. Ontario west to se. Saskatchewan and ne. North Dakota, south to w. New York, ne. Pennsylvania, c. Pennsylvania, n. Ohio, s. Michigan, se. Wisconsin, and e. South Dakota; disjunct in w. Virginia and e. West Virginia (Wieboldt et al. 1998). |  (c) Fleming, Gary P. |
| Fabaceae | Astragalus nuttallianus var. nuttallianus | Nuttall’s Milkvetch | Blackland prairies. | W. Arkansas, s. Kansas, and n. Texas south to sw. Louisiana, s. Texas, and Mexico; disjunct in w. Alabama (Keener 2013). | |
| Fabaceae | Astragalus nuttallianus var. zapatanus | Loredo Milkvetch | Sandy open areas, often in ruderal habitats. | S. Texas and Tamaulipas. | |
| Fabaceae | Astragalus obcordatus | Florida Milkvetch | Longleaf pine sandhills. | S. Mississippi south to c. peninsular Florida; reported for s. Georgia, but no specimen was seen by Barneby (1964) or Welsh (2023b). |  (c) Powell, Eric M - CC-BY-NC, permission granted to NCBG |
| Fabaceae | Astragalus plattensis | Platte River Milkvetch | Sandy or rocky prairies and open woodlands. | North Dakota and Montana south through South Dakota, Wyoming, Nebraska, Kansas, Colorado, and Oklahoma to sc. Texas. | |
| Fabaceae | Astragalus pleianthus | Blackland prairies, woodlands. | E. and c. Texas. | ||
| Fabaceae | Astragalus racemosus var. racemosus | Cream Milkvetch | Seleniferous bluffs, knolls, badlands, open alluvial areas, and roadsides on clay, shale, or gypsum. | Minnesota, North Dakota, s. Saskatchewan, and se. Montana south to n. Texas and New Mexico; only in c. Oklahoma in our region. | |
| Fabaceae | Astragalus reflexus | Texas Milkvetch, Drooping Milkvetch | Prairies, roadsides, edges of ponds and lakes on moist calcareous soils. | Nc. to s. Texas. This species is now very rare with only one known extant population on Fort Cavazos Military Reservation in Bell County, Texas (Torch Portal 2024; E. Keith, pers. obs.). Other than the Fort Cavazos population, it was last collected in 1965 in Zavala County in s. Texas (Torch Portal 2024). | |
| Fabaceae | Astragalus soxmaniorum | Soxmans' Milkvetch | Longleaf pinelands, other sandy forests and woodlands, adjacent roadbanks. | S. Arkansas south to w. Louisiana and e. Texas. This species is rare throughout its range and often disappears for many years before reappearing in response to unknown favorable conditions (E. Keith, pers. obs.). |  (c) Hill, Sonnia |
| Fabaceae | Astragalus tennesseensis | Tennessee Ground-plum | Calcareous glades. | Tennessee, n. Alabama, n. Illinois (and formerly c. Indiana, and possibly Missouri). It is locally abundant on the cedar glades of middle Tennessee, but many of these unique communities have been lost in recent decades due to the rapid growth of metropolitan Nashville. Extant populations also occur in n. Alabama, c. Illinois., and it has been extirpated from several locations in Alabama, Illinois, and Tennessee and from its only known site in Indiana (Welsh 2023b). |  (c) Cressler, Alan M. |
| Fabaceae | Astragalus trichocalyx | Ozark Ground-plum, Cream Ground-plum | Glades, barrens, woodlands, and prairies, often over calcareous substrates. | Illinois south and west through Missouri, Arkansas, and se. Kansas to nc. Louisiana, ne. Texas, and Oklahoma. |  (c) Cressler, Alan M. |
| Fabaceae | Astragalus villosus | Bearded Milkvetch, Southern Milkvetch | Longleaf pine sandhills and other dry, sandy places. | A Southeastern Coastal Plain endemic: s. South Carolina south to Panhandle Florida, west to s. Mississippi. |  (c) Weakley, Alan |
| Fabaceae | Astragalus wrightii | Wright's Milkvetch | Oak-juniper woodlands, grasslands, and limestone outcrops. | E. Texas west to trans-Pecos Texas. |