Potentilla recta
Rosaceae
Sulphur Cinquefoil
Tuft of upright stems sparsely coated with long and short hairs or glands. Leaves palmately divided into 5–7 oval leaflets. Basal leaves usually withered by bloom; stem leaves 3–6 in. long, toothed halfway to midvein. Flowers many, in flat terminal cluster; petals pale yellow, about 1/4–1/3 in. across. Seed brown, rough, with many deep ridges. Grows in disturbed soils at low to mid elevations. On Oregon, Washington, and California noxious weed lists, widespread across North America. Can be confused with P. gracilis, a native species. Otherwise similar P. norvegica, another Eurasian import, has only 3 leaflets.
- Rarity: Common
- Flowering Time: Early Spring, Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer
- Flower Form: 5 Petals-Many Stamens
- Life Cycle: Perennial
- Height: 8–24 inches
- Habitat: Disturbed, Meadow
- Found In: N Cascades NP
- Native: No
- Also Known As: Rough-Fruited Cinquefoil, Erect Cinquefoil
