Amaranthus powellii S.Watson

  • 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

    Amaranthus powellii S.Watson

  • Description

    Species Description - Monoecious, to 2 m, freely branched, puberulent to villous in the infl, otherwise glabrous or puberulent; lvs long-petioled, lance-ovate to deltoid-elliptic, to 10( 15) cm in well developed plants, glabrous or nearly so; infl terminal, stiff, dense and spike-like, unbranched or with a few widely spaced long branches, dull greenish, not showy; bracts ca 5 mm, much surpassing the sep and frs, with a very thick, excurrent midrib; sep 3–5, with simple midvein, those of the pistillate fls sharply acute, nearly straight, unequal, 2–3(–3.5) mm, the longer (outer) ones generally surpassing the fr; stamens as many as the sep; style-branches elongate, recurved from the thickened base; fr slightly rugose, circumscissile; seed dark brown, suborbicular, 1–1.3 mm; 2n=34. Native to open habitats in w. N. and S. Amer., now a common weed in w. U.S., and becoming established in our range.