Oryzopsis canadensis (Poir.) Torr. Fl. N. Y. 2: 433. 1843
S/<pa_;'un<:«a Michx. I'"l. Bor. Am. 1: 54. 1803. (Type from Hudson Bay, Canada, AfiV/iuiix.) Not
.S'. juncea L. 1753. 6'/i7>a canadensis Poir. in Lam. Encyc. 7: 452. 1806. (Based on Stipa juncea Michx. Basis of
Oryzopsis canadensis Torr.) Oryzopsis parviflora Nutt. Jour. Aca<J. Phila. 3: 125. 1823. (Type from Bellows Falls, Vermont.) Urachne canadensis Torr. & Gray, Gram. Cyper. Exsicc. No. 1 14. 1836. Based on Slipa canadensis
Poir. Oryzopsis juncea B.S.P. Prel. Cat. N. Y. 67. 1888. Based on Slipa juncea Michx. Slipa Macounii Scrihn.; Macoun, Cat. Can. PI. 5: 390. 1890. (Type from New Brunswick.) Oryzopsis Macounii Beal. Grasses N. Am. 2: 229. 1896. Ba,scd on Slipa Macounii Scribn.
Culms cespitose, slender, erect, somewhat scaberulous, 30-70 cm. tall; sheaths faintly scaberulous; ligule about 2 mm. long; blades flat or usually involute, scabrous, elongate, less than 2 mm. wide; panicles open, 5-10 cm. long, the slender flexuous branches ascending or spreading, naked below, few-flowered above, the lower 1-3 cm. long, solitary or in pairs; lateral pedicels 2-4 mm. long; glumes acute, pale or purplish, faintly nerved, glabrous, 4-6 mm. long; lemma elliptic, appressed-pubescent, about 3 mm. long ; awn once or obscurely twice-geniculate, 1-2 cm. long, scaberulous, the lower part somewhat twisted.
Type loc.vuty: Hudson Bay, Canada.
Distribution: Woods and thickets. Newfoundland to Alberta, and southward to New Hampshire. New York, northern Michigan, and northern Minnesota.
