Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
In a diversity of usually moist situations, including gravelly or marly shores, depressions and clearings in hardwoods, tamarack swamps, marshy and swampy borders and thickets; occasionally in dry forests.
An occasional specimen may have glumes as large as in Koeleria, from which this is readily distinguished by the essentially glabrous foliage and panicle, and relatively open, lax inflorescence, as well as by the very narrow first glume. A very few scattered specimens have sparsely pilose sheaths and/or blades; this sporadic variant has been named var. pilosa Dore.