Persicaria maculosa
Polygonaceae
Lady's-Thumb Knotweed
Erect, shiny, smooth. Stem branching from base, sometimes swollen above joints. Bracts on stems at leaf joints papery and fringed. Leaves lance-shaped, pointed at tips, usually with a dark spot in the middle, dots on underside. Flowers atop shiny stalks in dense uninterrupted spikes, pink or rarely white. A weedy species most often found on moist places and disturbed soils at low to mid elevations.
- Rarity: Common
- Flowering Time: Early Summer, Mid Summer, Late Summer
- Flower Form: 4-6 petals, flowers in clusters
- Life Cycle: Annual, Perennial
- Height: 8–36 inches
- Habitat: Bog/Fen/Wetland, Disturbed, Meadow
- Found In: N Cascades NP, Olympic NP
- Native: No
- Also Known As: Heartweed
- Latin Synonyms: Polygonum persicaria
