Inflorescences: bracts 2–4 mm wide, proximal margins glabrous. Flowers: calyx reddish with purple spots; corolla: tube pink to pinkish purple; galea pink to pinkish purple; abaxial lip pink to pinkish purple. 2n = 16.

Phenology: Flowering Jun–Aug.
Habitat: Open subalpine forests, meadows, dry rocky exposures, deep loam soils, rocky well-drained soils.
Elevation: 2000–2900 m.

Distribution

• Generated Map
• Legacy Map

Idaho, Mont.

Discussion

Reese noted that the center of distribution of var. rubicunda was Clearwater County, Idaho, and adjacent Ravalli County, Montana. Intermediates are common between var. contorta and var. rubicunda in areas of sympatry where the same species of Bombus pollinate both varieties during foraging (Reese).

Selected References

None.

Lower Taxa

None.