Comarum palustre
Rosaceae
Marsh Cinquefoil
Amphibious, mat or often floating. Stems to 3 ft. long, prostrate or ascending, reddish. Leaves mostly on flower stalks; lower leaves pinnately divided. Leaflets 5–7, oblong, coarsely toothed, hairy. Inflorescence usually consists of fewer than 10 flowers. Flower dark red, 3/4–1 1/2 in. across, with 5 petals much shorter than sepals, many stamens. Grows in bogs, marshes, banks of streams and lakes, at low to high elevations.
- Rarity: Locally Common
- Flowering Time: Early Summer, Mid Summer, Late Summer
- Flower Form: 5 Petals-Many Stamens
- Life Cycle: Perennial
- Height: 8–20 inches
- Habitat: Bog/Fen/Wetland, Lake/Pond, Meadow, Moist Riverbanks, Vernal Wet
- Found In: Mt. Rainier NP, N Cascades NP, Olympic NP, Wallowas
- Native: Yes
- Latin Synonyms: Potentilla palustris
