Veronicastrum virginicum (Culver's root, Culver's-root, Culverphysic, Culver's physic, Bowman's root, black root; syn. Leptandra virginica (L.) Nutt., Veronica virginica L.) is a wildflower native to the United States from southern Maine to northwest Florida to northern Louisiana up through Minnesota and a bit north of the Canada–US border; good for USDA zones of 3 to 8. Culver's root is frequently found in wet to wet-mesic prairies and sometimes moist upland sites. It is also found in a good number of prairie or native meadow restorations.