Polygonum arifolium L.

• Authority

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

• Family

  Polygonaceae

• Scientific Name

  Polygonum arifolium L.

• Description

  Species Description - Much like no. 30 [Polygonum sagittatum L.]; lvs hastate, to 20 × 15 cm, finely stellate beneath, the basal lobes triangular, divergent; peduncles commonly glandular above; perianth 2.5 mm, pink; styles 2, 0.5 mm; achene lenticular, 3.5–5 mm. Marshes, swamps, and wet meadows; N.B. to Minn., s. to Ga. and Mo. Aug–Sept. (Tracaulon a.)

• Common Names

  halberd-leaved tearthumb