Flowering stems 5–60 cm. Leaf blades 1–11 cm wide, 5–13-lobed for 1/4–1/2 length, lobes cuneate-oblong to subovate, 1–2 times dentate to subcrenate. Flowers: sepals triangular-ovate, 0.6–1.3 × 0.6–1 mm; petals ovate and abruptly clawed to ovate-lanceolate and more gradually narrowed into claw; ovary ± as long as wide. Capsules cylindric-ovate, 3.2–8 × 1.5–4 mm, to 2.5 times longer than wide. Seeds 0.9–1.6 mm. 2n = 14.

Phenology: Flowering Jun–Aug.
Habitat: Moist cliffs, stream banks, springs, near waterfalls, typically on limestone
Elevation: 900-2500 m

Distribution

• Generated Map
• Legacy Map

Idaho, Mont., Wyo.

Discussion

Variety hapemanii occurs in the Bighorn Mountains of north-central Wyoming and Bighorn Canyon of south-central Montana, with outliers in the Owl Creek Mountains and northern Laramie Range, Wyoming. It is also disjunct in the middle fork of the Salmon River in central Idaho.

Selected References

None.

Lower Taxa

None.