Potentilla glaucophylla var. perdissecta

(Rydberg) Soják

Thaiszia 16: 49. 2006.

Conservation concernEndemic
Basionym: Potentilla perdissecta Rydberg in N. L. Britton et al., N. Amer. Fl. 22: 327. 1908
Synonyms: P. diversifolia var. perdissecta (Rydberg) C. L. Hitchcock
Treatment appears in FNA Volume 9. Treatment on page 153. Mentioned on page 152, 181.

Stems 0.5–2 dm. Basal leaves palmate to subpalmate; distal 1/2–2/3 of leaflet margins incised 3/4+ to midvein, undivided medial blade 1.5–3 mm wide, teeth linear to narrowly oblong.


Phenology: Flowering summer.
Habitat: Edges of meadows, dry gravelly flats and slopes, in montane to subalpine conifer woodlands, mixed grassland communities in alpine tundra
Elevation: 1500–3000 m

Distribution

V9 222-distribution-map.jpg

Alta., Idaho, Mont., Wash., Wyo.

Discussion

Of conservation concern.

Variety perdissecta is confined to the northern Rocky Mountains of extreme southwestern Alberta, south into eastern Idaho, western Montana, and western Wyoming. The variety is also reported from Okanogan County, Washington. Apparent intergradation occurs with pinnate-leaved Potentilla ovina var. decurrens (sect. Multijugae).

Selected References

None.

Lower Taxa

None.
Barbara Ertter +  and James L. Reveal +
(Rydberg) Soják +
Potentilla perdissecta +
Alta. +, Idaho +, Mont. +, Wash. +  and Wyo. +
1500–3000 m +
Edges of meadows, dry gravelly flats and slopes, in montane to subalpine conifer woodlands, mixed grassland communities in alpine tundra +
Flowering summer. +
Conservation concern +  and Endemic +
P. diversifolia var. perdissecta +
Potentilla glaucophylla var. perdissecta +
Potentilla glaucophylla +
variety +