Eriogonum pyrolifolium var. coryphaeum

Torrey & A. Gray

Proc. Amer. Acad. Arts 8: 162. 1870.

Common names: Hairy Shasta wild buckwheat
Endemic
Synonyms: Eriogonum pyrolifolium var. bellingeranum M. Peck
Treatment appears in FNA Volume 5. Treatment on page 374.

Aerial flowering stems prostrate to weakly erect, 0.4–1.5(–1.8) dm. Leaf blades densely lanate to tomentose abaxially, mostly glabrous and green adaxially. Perianths usually copiously pilose to villous abaxially with glandular hairs obscure. 2n = 40.


Phenology: Flowering Jun–Sep.
Habitat: Sandy to gravelly, usually nonvolcanic flats, slopes, and ridges, mixed grassland, sagebrush, and mountain meadow communities, oak, montane, and subalpine conifer woodlands
Elevation: 1600-3100 m

Distribution

V5 772-distribution-map.gif

B.C., Calif., Idaho, Mont., Oreg., Wash.

Discussion

Variety coryphaeum is by far the more common of the two varieties, being found in the mountains from southern British Columbia south through Washington and Oregon into northwestern California, eastward into central Idaho and central-western Montana.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
Torrey & A. Gray +
Hairy Shasta wild buckwheat +
B.C. +, Calif. +, Idaho +, Mont. +, Oreg. +  and Wash. +
1600-3100 m +
Sandy to gravelly, usually nonvolcanic flats, slopes, and ridges, mixed grassland, sagebrush, and mountain meadow communities, oak, montane, and subalpine conifer woodlands +
Flowering Jun–Sep. +
Proc. Amer. Acad. Arts +
Eriogonum pyrolifolium var. bellingeranum +
Eriogonum pyrolifolium var. coryphaeum +
Eriogonum pyrolifolium +
variety +