Draba arabisans Michx.
Common Name: ROCK WHITLOW-GRASS
Coefficient of Conservatism: 10
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb
Status: SC

A northern species, but our commonest rock-dwelling species of Draba, and the only one likely to be encountered in the state by most botanists. Distinctive among our species in its twisted fruit, although a few specimens do not show this twisting very clearly. A few collections are unusual in having somewhat pubescent young fruits, but can be told from D. cana by their longer anthers (0.4–0.6 mm long versus ca. 0.2 mm).

Locations

Chippewa County
Keweenaw County
    Including Isle Royale
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Marquette County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 18, 2017. http://www.michiganflora.net/species.aspx?id=641.