Trisetum spicatum (L.) K.Richt.

  • 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

    Trisetum spicatum (L.) K.Richt.

  • Description

    Species Description - Culms tufted, 1–5 dm, antrorsely hairy above, retrorsely so (or glabrous) below; sheaths retrorsely hairy; blades flat or involute, glabrous or hairy, 1–3 mm wide; infl 3–10 cm, dense, or interrupted at base, spikelets mostly 2-fld; first glume linear-oblong, 3–5 mm, 1- veined; second glume lanceolate to oblanceolate, 4–6 mm, 3-veined; hairs of the rachilla 0.5 mm; lemmas slightly surpassing the glumes, the terminal teeth 1.3–2 mm, narrowly triangular; awn flexuous, 3.5–5 mm; anthers 0.6–1.4 mm; 2n=14, 28, 42. Arctic and alpine meadows and shores; circumboreal, s. to the higher mts. of U.S., Hispaniola, Mex., and s. S. Amer.; in our range s. to N.Y., Pa., Mich., and Minn., and in N.C. The numerous proposed vars. are ill-defined and confluent.