Persicaria lapathifolia
Polygonaceae
Willow Smartweed
More or less upright, branched, willowy-looking. Leaves lance-shaped, petiole with plain brown shiny appendage at base. Inflorescence on gland-coated stalks, drooping spikes of white, pink, most often greenish flowers that remain closed. Grows in moist soils, meadows, swamps, roadsides, at low to mid-elevations.
- Rarity: Locally Common
- Flowering Time: Early Summer, Mid Summer, Late Summer
- Flower Form: 4-6 petals, flowers in clusters
- Life Cycle: Annual
- Height: 8–32 inches
- Habitat: Bog/Fen/Wetland, Disturbed, Meadow, Moist Riverbanks
- Found In: East Gorge, Mt. Rainier NP, Olympic NP, Steens, West Gorge
- Native: Yes
- Also Known As: Dockleaf Smartweed
- Latin Synonyms: Polygonum lapathifolium
