| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Convolvulaceae | Stylisma abdita | Showy Dawnflower | Florida scrub. | Ne. FL (Clay County) south to sw. FL. |  |
| Convolvulaceae | Stylisma angustifolia | Narrowleaf Dawnflower | Longleaf pine sandhills. | SE. NC south to c. peninsular FL, west to w. Panhandle FL. |  |
| Convolvulaceae | Stylisma aquatica | Water Dawnflower | Clay-based Carolina bays, wet pine savannas, margins of pineland ponds (vernal pools). | Se. and sc. NC south to c. FL and Panhandle FL, west to se. AR and e. TX. |  |
| Convolvulaceae | Stylisma humistrata | Southern Dawnflower | Longleaf pine sandhills, dry hammocks, and other dry woodlands, especially on dryish stream terraces. | Se. VA south to Panhandle FL, west to AR and e. TX, north in the interior to n. AL and w. TN. |  |
| Convolvulaceae | Stylisma patens | Common Dawnflower | Longleaf pine sandhills and other relatively dry sandy areas. | E. NC south to n. FL, and west to s. MS; reports from west of the Mississippi River are misidentifications. |  |
| Convolvulaceae | Stylisma pickeringii var. pattersonii | Patterson's Dawnflower | Longleaf pine sandhills, dry sandy prairies, open sandy woodlands, other dry sandy habitats. | IL and IA south through KS and OK to w. LA and e. TX; disjunct in w. MS (the material somewhat ambiguous as to varietal affinity). |  |
| Convolvulaceae | Stylisma pickeringii var. pickeringii | Pickering's Dawnflower | Longleaf pine sandhills, usually in the driest, most barren, deep-sand areas, occasionally colonizing dry, disturbed areas in sandhills, such as sandy roadbanks, known from the Fall-line Sandhills, aeolian rims of Carolina bays, and sandhills on relict riverine dunes along Coastal Plain rivers. | Var. pickeringii ranges from s. NC south through SC, GA, AL, and e. MS, with a disjunct area in the Pine Barrens of s. NJ, sometimes treated as a separate variety "caesariensis" (see synonymy). |  |
| Convolvulaceae | Stylisma villosa | Hairy Dawnflower | Longleaf pine sandhills, Florida scrub. | S. GA south to s. FL, west to e. TX. |  |
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