Scientific Note: The Praire-Redroot (Ceanothus herbaceus Raf.) in the Mid-Atlantic United States

The prairie-redroot (Ceanothus herbaceus Raf.) is a low, bushy shrub of the Rhamnaceae that typically occurs on prairies, open plains, calcareous bluffs, and open woodlands from Montana and Colorado, east to Michigan and southward to Texas, Louisiana and Indiana. It also occurs in the Great Lakes region, with a small number of outlying stations eastward into New York, Vermont and Quebec (Coile 1988). Gleason and Cronquist (1991) do not include any other eastern occurrences. Here, we review its status in the mid-Atlantic United States, confirm its occurrence in the District of Columbia and report it for the first time from West Virginia and the central Appalachians.