| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Melanthiaceae | Stenanthium gramineum var. gramineum | Featherbells | Dry and mesic forests and woodlands, grassy balds, serpentine barrens, to at least 1700m in elevation. | PA west to IL and MO, south to ne. NC, Panhandle FL, and TX. |  |
| Melanthiaceae | Stenanthium gramineum var. robustum | Bog Featherbells | Bogs and wet meadows. | PA west to IN, south to w. NC. |  |