Panicum wilcoxianum Vasey

  • Authority

    Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

  • Family


  • Scientific Name

    Panicum wilcoxianum Vasey

  • Description

    Species Description - Culms densely clustered, erect, 1–3 dm, papillose-hirsute with ascending hairs to sparsely villous; sheaths loose, usually longer than the internodes, papillose-hirsute with hairs usually 2–5 mm; ligule a band of short hairs 0.4–1.6 mm; blades erect, 4–8 cm × 2–6 mm, scarcely wider than the sheaths, involute distally, papillose-hirsute on both sides, varying to nearly glabrous above; primary panicle tardily exsert, ovoid, 2–4 cm, the flexuous axis and branches glabrate except in the axils; spikelets softly villosulous, ellipsoid-obovoid, 2.4–2.9 mm; first glume a third to nearly half as long, broadly ovate, obtuse to acute; second glume slightly shorter than the fr and sterile lemma; autumnal phase branching early, before maturity of the primary panicle, from all nodes, forming dense masses 1–2 dm, the erect blades scarcely reduced, much surpassing the small panicles; 2n=18. Dry prairies; Ill. and n. Ind. to Man., Kans., and N.M. (P. deamii; Dichanthelium oligosanthes var. w.; Dichanthelium w.)