Common Name: arrowleaf tear-thumbScientific Name: Polygonum sagittatum L. syn. Persicaria sagittataFamily Name: Polygonaceae - Smartweed or Buckwheat FamilyIdentification NotesLife Cyclenative annual, reproducing by seed Stemsupright becoming reclining or sprawling, 4-sided and ribbed, slender and weak, retrorsely barbed, nodes swollen with ohrea present Leavesalternate, lanceolate to oblong with arrow-shaped basal lobes, lobes surrounds stem, tips pointed, margins entire, smooth without hairs, barbs on mid-vein below, petioles slender and barbed, long petioles below and nearly sessile above Flowers5-sepaled, pink to white, egg-shaped and often closed; terminal and axillary racemes with 2 to 10 flowers