| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Polygalaceae | Polygalaceae | Milkwort Family |  | ||
| Polygalaceae | Hebecarpa ovatifolia | Oval-leaf Polygala | Scrub and woodlands on rocky slopes. | Ec., c. and s. TX, south into Mexico (CHH, COA, NLE, TAM). | |
| Polygalaceae | Polygaloides paucifolia | Gaywings, Fringed Polygala, Flowering Wintergreen, Bird-on-the-wing | Moist to dry forests, southwards mostly at moderate to high elevations. | NB and QC west to SK, south to CT, NY, WI, and in the Appalachians south to w. NC, nw. SC, n. GA, and e. TN. |  |