Polygonum arifolium

Common Name: 
Halberd-leaved tearthumb
Scientific Name: 
Polygonum arifolium L.
Family Name: 
Polygonaceae - Smartweed or Buckwheat Family
Identification Notes
Life Cycle
native annual, reproducing by seed
Stems
upright becoming reclining or sprawling, 4-sided and ribbed, slender and weak, retrorsely barbed, nodes swollen with ohrea present, ohrea with fringed apex and bristle at base
Growth Habit of Halberd-Leaved Tearthumb
Growth Habit of Halberd-Leaved Tearthumb
Growth Habit of Halberd-Leaved Tearthumb
Leaves
alternate, arrow-shaped with triangular and spreading basal lobes, tips pointed, margins entire, often pubescent, barbs on mid-vein below, petioles slender and barbed, long petioles below and nearly sessile above
Leaves of Halberd-Leaved Tearthumb
Flowers
5-sepaled, pink to white, egg-shaped and often closed; terminal and axillary racemes with 2 to four flowers, stalk glandular and bristly