Coefficient of Conservatism:
Coefficient of Wetness:
B. S. Walters
Agricultural fields, roadsides, railway embankments, disturbed sunny sites. A recent invader from Asia first collected in Clinton Co. in 1965, spreading aggressively and a serious crop weed in many areas.
A tetraploid, this species is ordinarily more robust than S. viridis, which is diploid. The lemmas of S. viridis are sometimes spotted or mottled dark brown; those of S. faberi are unspotted. In its pubescent leaf blades and larger, somewhat exposed grains, this species might be thought to resemble S. pumila, but is readily distinguished by its ciliate sheath margins, less rugose fertile lemma, and smaller first glume. (The first glume in S. pumila is more than half as long as the second glume.)