| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Amaryllidaceae | Hymenocallis occidentalis var. eulae | Summer Spiderlily | Floodplains and seepage areas. | AR and OK south to TX; disjunct east of the Mississippi River in the the Mississippi Delta part of MS. |  |
| Amaryllidaceae | Hymenocallis occidentalis var. occidentalis | Hammock Spiderlily, Woodland Spiderlily, Northern Spiderlily | Mesic soils of slopes and floodplain forests, gabbro glades and other calcareous upland flats. | W. NC south to Panhandle FL, west to AR, LA, and extreme e. TX. |  |