Family | Scientific Name | Common Name | Habitat | Distribution | Image |
---|---|---|---|---|---|
Polygonaceae | Duravia species 1 | Douglas’s Knotweed | Disturbed areas. | Native of n. and w. North America, to n. Mexico (BCN, SON). Reported for VA in FNA. | |
Polygonaceae | Duravia species 2 | Glade Knotweed, Slender Knotweed | Glades, barrens, and thin, rocky soils, over various rock types (including granite, diabase, amphibolite, greenstone, metagabbro, and shale), also in dry sands. | ME, ON, MN, SD, WY, south to GA, AL, MS, LA, TX. |