Oryzopsis racemosa (Sm.) Ricker
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Poaceae
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Scientific Name
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Description
Species Description - Loosely tufted from a knotty rhizome, 4–10 dm; principal lvs cauline, scaberulous above, pubescent beneath, the blades mostly 10–20 cm × 8–15 mm, with many fine veins; lower lvs ± reduced, the basal sometimes to mere sheaths; ligule minute or none; panicle sparsely branched, 1–2 dm, the few straight branches spreading or ascending, bearing the few appressed spikelets toward the end; glumes herbaceous, narrowly elliptic, acute or short-acuminate, 7–9 mm, distinctly 7-veined; lemma 5.5–7 mm, dark brown and shining; awn 12–22 mm; 2n=46, 48. Dry to moist woods and wooded dunes; Que. to Ont., Minn., and N.D., s. to Va., Ky., Mo., and Nebr. (Piptatherum r.)
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Common Names
blackseed-ricegrass