Rumex occidentalis 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

    Rumex occidentalis S.Watson

  • Description

    Species Description - Stout, taprooted perennial to 2 m; lower lvs 10–30 cm, oblong or linear-oblong, abruptly cordate or subcordate at the base, often crisp-margined; infl of crowded glomerules, at maturity forming a continuous slender panicle to 5 dm; pedicels in fr 5–10 mm, not visibly jointed, but disjointing at a fourth their length; valves cordate-ovate to cordate-triangular, 4–7 mm, about as wide, entire, conspicuously reticulate, without grains; achene 3.5–4.5 mm; 2n=ca 140, 160, 200. Wet soil; N.S. and c. Me. to Nf.; widespread in the w. Cordillera. (R. fenestratus)

  • Common Names

    western dock