| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Fabaceae | Robinia hartwigii | Granite Dome Locust, Highlands Locust, Hartwig's Locust | Forests and outcrop edges on high elevation granitic domes, also clearings; disjunct in longleaf pine sandhills. | Apparently endemic to a small area around Highlands, NC; and disjunct in the Sandhills of SC (Aiken County; Patrick McMillan, pers. comm., 2015). |  |
| Fabaceae | Robinia hispida var. fertilis | Arnot Bristly Locust | Woodlands and forests. | Apparently endemic to the Southern Appalachians of w. NC and e. TN. |  |
| Fabaceae | Robinia hispida var. hispida | Common Bristly Locust | Woodlands and forests, and as an escape in disturbed areas and roadsides. | Probably originally endemic to the Southern Appalachians (and perhaps adjacent provinces) of NC, SC, GA, TN, and VA, now widely distributed in e. North America as an escape from cultivation. |  |
| Fabaceae | Robinia hispida var. kelseyi | Kelsey's Locust | Mountain woodlands, introduced elsewhere. | Traditionally considered an endemic originally restricted to w. NC, but Cronquist (1980) and Isely & Peabody (1984) suggest that var. kelseyi may have been only of horticultural origin. |  |
| Fabaceae | Robinia hispida var. rosea | Boynton's Locust | Pich pine woodlands, other mountain woodlands. | Originally distributed from se. KY, s. VA, and e. TN south to nw. SC, n. GA, and ne. AL, now occasionally found outside that range as an escape from cultivation. |  |
| Fabaceae | Robinia nana | Sandhill Bristly Locust, Dwarf Bristly Locust | Longleaf pine sandhills, dry rocky forests (especially associated with chestnut oak). | Se. and nc. NC south through SC to GA and AL. |  |
| Fabaceae | Robinia pseudoacacia | Black Locust | Forests, woodlands, disturbed areas, roadcuts. | Native in the s. and c. Appalachians, from PA south to GA and AL, and the Interior Highlands, now much more widespread, throughout e. and c. North America, also widely cultivated and escaped in Europe. |  |
| Fabaceae | Robinia viscosa | Clammy Locust | Mountain forests and woodlands, roadsides, disturbed areas, rare in wild, uncommon as an escape. | Originally a Southern and Central Appalachian endemic, ranging from PA south through w. MD, w. VA, e. WV, w. NC, and e. TN, to n. GA and n. AL, now much more widespread as an escape from cultivation. Reported for GA Coastal Plain (Marion County) (Carter, Baker, & Morris 2009). |  |
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