Aerial shoots 5-20(-30) cm. Basal leaves: lateral leaflets usually 1×-lobed; ultimate lobes 6-10 mm wide. Inflorescences: involucral bracts with terminal leaflet 1-4 × 0.8-2.5 cm, base narrowly cuneate, margins serrate, more sharply serrate than in basal leaves, apex acuminate to narrowly acute; lateral leaflets usually 1×-lobed; ultimate lobes 4-10 mm wide. Flowers: sepals abaxially reddish, violet, or marginally purple, adaxially white; stamens 60-75. Achenes: body puberulous to pilose.

Phenology: Flowering spring (Apr–Jun).
Habitat: Marshes, sphagnum bogs
Elevation: 300-1000 m

Distribution

• Generated Map
• Legacy Map

Oreg., Wash.

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.