Coefficient of Conservatism:
*
Coefficient of Wetness:
5
Wetness Index:
UPL
Physiognomy:
Ad A-Forb
R. Schipper
A Eurasian weed of dry roadsides, fields, and disturbed ground, first collected in Michigan in 1916 in Washtenaw Co. There is a distinct stalk-like, sterile, 0.5–1 (–1.5) mm long, basal portion of the maturing ovary and fruit, a helpful character for specimens otherwise incomplete or of ambiguous flower color; in R. sativus, the cylindrical stalk is less tham 1 mm long before the ovary begins to widen,