Eriogonum brevicaule var. micranthum

(Nuttall) Reveal

Taxon 16: 410. 1967.

Common names: Red Desert wild buckwheat
Basionym: Eriogonum micranthum Nuttall Proc. Acad. Nat. Sci. Philadelphia 4: 15. 1848
Synonyms: Eriogonum brevicaule subsp. orendense (A. Nelson) S. Stokes Eriogonum orendense
Treatment appears in FNA Volume 5. Treatment on page 266. Mentioned on page 265.
Revision as of 21:54, 16 December 2019 by FNA>Volume Importer

Plants erect, (0.8–)1.5–5 × 2–5 dm. Aerial flowering stems erect, 0.5–1 dm, densely tomentose to lanate. Leaves: blade oblanceolate to narrowly spatulate, 1.5–5(–6) × (0.2–)0.3–0.8(–1.2) cm, margins plane. Inflorescences cymose, usually divide 3 or more times, 3–6 cm; branches tomentose. Involucres 1 per node, turbinate-campanulate, 2.5–3 × 2–2.5 mm, tomentose. Flowers (1–)1.5–2.5 mm; perianth yellow or, rarely, ochroleucous, glabrous.


Phenology: Flowering Jun–Sep.
Habitat: Sandy to gravelly flats and slopes, mixed grassland and sagebrush communities
Elevation: (1700-)1800-2400(-2600) m

Discussion

Variety micranthum is restricted to the Red Desert region of southwestern Wyoming in Carbon, Fremont, Lincoln, Natrona, Sublette, Sweetwater, and Uinta counties.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Nuttall) Reveal +
Eriogonum micranthum +
Red Desert wild buckwheat +
(1700-)1800-2400(-2600) m +
Sandy to gravelly flats and slopes, mixed grassland and sagebrush communities +
Flowering Jun–Sep. +
Eriogonum brevicaule subsp. orendense +  and Eriogonum orendense +
Eriogonum brevicaule var. micranthum +
Eriogonum brevicaule +
variety +