| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Clethraceae | Clethra acuminata | Mountain Sweet-pepperbush, Mountain White-alder | Moist forests, heath balds, streambanks, margins of rock outcrops at high elevations. | Endemic to the Southern and Central Appalachians, C. acuminata ranges from sw. PA south through e. WV, w. VA, e. TN, w. NC to nw. SC, n. GA, and ne. AL. |  |
| Clethraceae | Clethra alnifolia | Coastal Sweet-pepperbush, Coastal White-alder | Pocosins, blackwater swamp forests, nonriverine swamp forests. | Primarily a southeastern Coastal Plain species, C. alnifolia ranges from NS and ME south to FL, west to TX; disjunct in sc. TN (Coffee County) (Chester, Wofford, & Kral 1997). |  |
| Clethraceae | Clethra tomentosa | Downy Sweet-pepperbush, Downy White-alder | Pocosins, swamps, streambanks. | E. SC south to FL, and west to e. LA (east of the Mississippi River). |  |
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