Thyrses: proximal bracts orbiculate to ovate, rarely lanceolate. Flowers: calyx lobes ovate to lanceolate, 3–6.5 mm. 2n = 16.

Phenology: Flowering May–Jun(–Jul).
Habitat: Gumbo hills, shortgrass prairies, montane grasslands, roadcut banks.
Elevation: 200–2500 m.

Distribution

• Generated Map
• Legacy Map

Alta., B.C., Man., Sask., Mont., N.Dak., S.Dak., Wyo.

Discussion

Variety nitidus occurs widely in the northwestern Great Plains and at low elevations in the Central, Northern, and Canadian Rocky mountains.

Selected References

None.

Lower Taxa

None.