Eriogonum strictum var. proliferum

(Torrey & A. Gray) C. L. Hitchcock

in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 2: 132. 1964.

Common names: Proliferous wild buckwheat
IllustratedEndemic
Basionym: Eriogonum proliferum Torrey & A. Gray Proc. Amer. Acad. Arts 8: 164. 1870
Synonyms: Eriogonum fulvum S. Stokes Eriogonum strictum var. argenteum S. Stokes Eriogonum strictum subsp. bellum (S. Stokes) S. Stokes Eriogonum strictum subsp. proliferum (Torrey & A. Gray) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 318. Mentioned on page 317, 319, 322.

Plants loose mats, 2–4 dm wide. Leaf blades broadly elliptic to ovate, 1–3 cm, grayish-tomentose to floccose on both surfaces, sometimes greenish-tomentose to floccose and greenish adaxially. Inflorescences 5–15 cm; branches tomentose to floccose. Involucres 4–6 × 2–4 mm, tomentose. Flowers 3–5 mm; perianth white to rose or purple.


Phenology: Flowering Jun–Sep.
Habitat: Sandy to gravelly flats and slopes, sagebrush communities, montane conifer woodlands
Elevation: (100-)400-2700 m

Distribution

V5 639-distribution-map.gif

Calif., Idaho, Mont., Nev., Oreg., Wash.

Discussion

Variety proliferum is widespread and often rather common throughout its range. The largest concentration is found in a gentle arc from northeastern Washington to southern Idaho and western Montana. The variety is widely distributed also in central and eastern Oregon, northern California, and Nevada. In portions of central Idaho and western Montana, some individuals clearly approach Eriogonum ovalifolium var. pansum.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Torrey & A. Gray) C. L. Hitchcock +
Eriogonum proliferum +
Proliferous wild buckwheat +
Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +  and Wash. +
(100-)400-2700 m +
Sandy to gravelly flats and slopes, sagebrush communities, montane conifer woodlands +
Flowering Jun–Sep. +
in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. +
Illustrated +  and Endemic +
Eriogonum fulvum +, Eriogonum strictum var. argenteum +, Eriogonum strictum subsp. bellum +  and Eriogonum strictum subsp. proliferum +
Eriogonum strictum var. proliferum +
Eriogonum strictum +
variety +