Difference between revisions of "Eriogonum ovalifolium var. purpureum"

(Nuttall) Durand

Trans. Amer. Philos. Soc., n. s. 11: 175. 1860.

Common names: Purple cushion wild buckwheat
Basionym: Eucycla purpurea Nuttall
Synonyms: Eriogonum davisianum S. StokesEriogonum orthocaulon SmallEriogonum ovalifolium var. celsum A. NelsonEriogonum ovalifolium var. orthocaulon (Small) C. L. HitchcockEriogonum ovalifolium subsp. purpureum (Nuttall) A. Nelson ex S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 320. Mentioned on page 321, 322, 323.
FNA>Volume Importer
(No difference)

Revision as of 21:26, 26 July 2019

Plants 2.5–4 dm wide. Leaf blades spatulate, oblong, or obovate to oval, 0.5–2 cm, tomentose to floccose, margins not brownish. Scapes erect, (4–)5–20 cm, tomentose. Inflorescences capitate, 1.5–3.5 cm wide; branches absent. Involucres 3–15 per cluster, 4–5 mm. Flowers 4–5 mm; perianth white to rose or purple. 2n = 40.


Phenology: Flowering Apr–Aug.
Habitat: Sandy to gravelly flats, washes, slopes, and ridges, mixed grassland, saltbush, and sagebrush communities, pinyon and/or juniper and montane conifer woodlands
Elevation: 700-3100 m

Distribution

V5 645-distribution-map.gif

Alta., B.C., Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

Discussion

Variety purpureum is the most widespread and common expression of the species, being found in southern British Columbia and southwestern Alberta, and in northern Arizona, eastern California, western Colorado, Idaho, western Montana, Nevada, northwestern New Mexico, eastern Oregon, Utah, southeastern Washington, and Wyoming. It approaches var. depressum both geographically and morphologically in the Yellowstone National Park area, and a clear distinction is not always possible. The name var. ovalifolium was long misapplied to what is here termed var. purpureum.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Nuttall) Durand +
Eucycla purpurea +
Purple cushion wild buckwheat +
Alta. +, B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
700-3100 m +
Sandy to gravelly flats, washes, slopes, and ridges, mixed grassland, saltbush, and sagebrush communities, pinyon and/or juniper and montane conifer woodlands +
Flowering Apr–Aug. +
Trans. Amer. Philos. Soc., n. s. +
Illustrated +  and Endemic +
Eriogonum davisianum +, Eriogonum orthocaulon +, Eriogonum ovalifolium var. celsum +, Eriogonum ovalifolium var. orthocaulon +  and Eriogonum ovalifolium subsp. purpureum +
Eriogonum ovalifolium var. purpureum +
Eriogonum ovalifolium +
variety +