"Culms 2 1/2 to 3 feet high, rather stout and leafy, sterile shoots half as long; leaves erect rigid, scabrous, 6 to 8 inches long, 2 to 3 lines wide, slender pointed; ligule nearly obsolete; sheaths scabrous; spike about 4 inches long, erect; spikelets 1 to 2 at each joint, three to five-flowered; empty glume 6 to 7 lines long, including the awn, the upper one five-nerved, lower one three to four-nerved, scabrous on the nerves; flowering glume about 5 lines long, with a fine scabrous awn of equal length, obscurely five-nerved, smooth or nearly so, punctulate and shining; palet a little shorter, ciliate-scabrous on the nerve. The spike is less thick than in E. Virginicus, and more compact than in E. striatus." ( Vasey,) Quite common in damp thickets at Agassiz, Yale and Shuswap Lake, B.C. 1889. (Macoun.)
(2948.) E. Macounii, Vasey, Bull. Torr. Bot. Club, XIII., 119; Macoun, Cat. IV., 246.
"Culm 2 to 3 feet high, smooth, leaves of culm 3 or 4, rigid, erect, narrow, scabrous, 3 to 6 inches long; ligule short and truncate; spike slender, erect, cyclindrical 3 to 5 inches long; commonly in slender specimens there is but one spikelet at each joint of the rachis, in stronger ones the lower spikelets are in pairs and the upper ones single; frequently some of the spikelets have three glumes, even some of the double ones, i.e., one glume on each side and one in front. Spikelets one to three-flowered, empty glumes linear-lanceolate, rigid, scabrous, mostly three-nerved, 3 to 4 lines long, and running into an awn as long or longer; flowering glumes oblong-lanceolate, punctulate below and scabrous above, 4 or 5 lines long, with an awn as long or longer, five-nerved; palet equalling the glume, obtuse." ( Vasey.) In tufts on dry hillsides and in hollows, at and around, Kamloops, B.C., 1889. (Macoun.) "These specimens differ from the type only in their pubescent lower sheathes and leaves. Axis of spike articulated." (Scribner.)