Polygonum convolvulus L.

  • 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

    Polygonum convolvulus L.

  • Description

    Species Description - Trailing or twining annual to 1 m; stem, petioles, and often the lf-veins scabrellate in lines; lvs sagittate to triangular-cordate, ocreae smooth; racemes interrupted, naked or with a few small lvs at base, 2–6 cm; fls in clusters of 3–6; pedicels 1–2 mm, jointed above; perianth 1.5–2 mm, green outside, white inside; achene dull black, 3–4 mm, closely invested but not exceeded by the perianth; outer tep often with narrowly winged midrib; styles united; 2n=20, 40. Roadsides, railways, and waste ground throughout our range; native of Europe. May–Oct. (Bilderdykia c.; Tiniaria c.)

  • Common Names

    black bindweed