Source: USDA Plants_111306
White-Grain Mountain-Rice Grass, more...
[Oryzopsis aspera Michx. ex Muhl., more]
From Flora of Indiana (1940) by Charles C. Deam
This species is known only from La Porte and Porter Counties where it is found on open wooded dunes.
Loosely tufted, often widely radiating or prostrate, 3-8 dm; principal lvs basal or nearly so, evergreen, with long, stiffly erect blade to 4 dm, 4-10 mm wide, with strong, closely spaced veins, densely and finely rough-puberulent (or merely scabrous) beneath, glabrous and usually glaucous above, long-tapering at base; cauline lvs progressively reduced, the uppermost bladeless or with a blade to 3 cm; ligules 0.2-0.7 mm, truncate, ciliolate; panicle slender, racemiform, 3-7 cm, the paired branchlets each with a single spikelet; glumes elliptic or broadly ovate, herbaceous, distinctly 5- or 7-veined, 6-8.5 mm, obtuse to abruptly acute or mucronate; lemma 5-7 mm, pale green or yellowish, finely appressed-hairy, its flexuous awn 6-14 mm; 2n=46, 48. Upland woods; Nf. and Que. to B.C., s. to Pa., n. Ind., S.D., N.M., and Utah.
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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