Monographs Details: Oryzopsis canadensis (Poir.) Torr.
Authority: Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Description:Species Description - Loosely tufted, 3–8 dm; ligules of upper lvs mostly 1.5–3 mm; blades 1–2 mm wide, involute at least when dry, those of the flowering stems to 1 dm, the basal ones longer; panicle lax and open, ovoid, 8–15 cm, with flexuous, capillary, widely spreading branches; glumes elliptic-obovate, 3.5–4.8 mm, perfectly smooth, very thin, the lateral veins inconspicuous; mature lemma 2.5–4 mm, dull brown, rather sparsely appressed-pilose; awn persistent, 6–11 mm, crooked, twisted and often somewhat coiled in the basal half. Dry, sandy or rocky woods; Nf. to Sask., s. to n. N.Y., n. Mich., n. Wis. and n. Minn. (Stipa c.)