Panicum columbianum Scribn.
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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 - Culms clustered, erect or ascending, often purplish, densely short-pubescent with minute hairs 0.1–0.4 mm, and generally with some intermingled longer hairs (often 1 mm) toward the summit of the lower internodes; sheaths likewise with bistratal pubescence; ligule a band of hairs 0.5–1.5 mm; blades 1–7 cm × 3–7 mm (those of the midstem commonly 2–5 cm), glabrous above or with a few widely scattered hairs, minutely puberulent beneath; primary panicle ovoid, mostly 2.5–4 cm, its axis puberulent; spikelets finely hairy, oblong-ovoid, obtuse, 1.3–1.9 mm, the first glume triangular-ovate, two-fifths as long; autumnal phase spreading or decumbent, branched early from most of the nodes, the blades scarcely reduced, the panicles smaller, surpassed by the lvs; 2n=18. Moist or dry, especially sandy soil; Me. to Minn., s. to Va., Tenn., and Ill. (P. oricola; P. tsugetorum; Dichanthelium c.; D. sabulorum var. thinium) Perhaps properly to be subordinated to P. acuminatum Sw.