| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Lamiaceae | Scutellaria ovata var. bracteata | Dry forests and woodlands, hammocks. | MO south through AR and OK to c. TX and Mexico; disjunct eastward in s. MS, c. and n. AL, w. Panhandle FL, nw. GA, and NC and SC. |  | |
| Lamiaceae | Scutellaria ovata var. ovata | Heartleaf Skullcap | Mesic to submesic forests and woodlands. | VA, OH, s. MI, s. WI, and se. MN south to FL Panhandle, and e. TX. |  |
| Lamiaceae | Scutellaria ovata var. rugosa | Shale barrens, other dry woodlands. | Appalachians from MD to w. NC; Interior Highlands from sw. IL through s. MO to nc. AR. |  |