| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Asteraceae | Melanthera angustifolia | Prairie Black-anthers | Marl prairies, wet pine rocklands. | S. Florida; West Indies; s. Mexico (Campeche, Chiapas, Quintana Roo, Tabasco, Veracruz, Yucatán) and Central America. |  (c) Campos, Aidan |
| Asteraceae | Melanthera nivea | Snowy Black-anthers, Snow Squarestem | Calcareous outcrops, sandy woodlands. | E. South Carolina south to s. Florida, west to Louisiana; also widespread in the West Indies, Mexico, Central America, and northern South America (Colombia, Ecuador, Peru, and Venezuela). |  (c) Sorrie, Bruce A. - CC-BY |
| Asteraceae | Melanthera parvifolia | Pineland Black-anthers | Drier pine rocklands. | Endemic to s. peninsular Florida. |  (c) Bradley, Keith |