Eriogonum brevicaule var. nanum

(Reveal) S. L. Welsh

Great Basin Naturalist 44: 531. 1984.

Common names: Dwarf wild buckwheat
Endemic
Basionym: Eriogonum nanum Reveal Phytologia. 25: 194. 1973
Synonyms: Eriogonum grayi Reveal
Treatment appears in FNA Volume 5. Treatment on page 267. Mentioned on page 264, 265.

Plants pulvinate and cespitose, 0.3–1.5(–1.8) × 1–2.5 dm. Aerial flowering stems erect or nearly so, usually scapelike, (0.2–)0.4–1.5 dm, glabrous. Leaves: blade narrowly oblanceolate to narrowly elliptic, 0.3–2 × 0.2–0.5(–0.7) cm, densely white-tomentose abaxially, floccose and greenish adaxially, margins crenulate. Inflorescences capitate or open and umbellate, 1–5 cm; branches absent or typically glabrous. Involucres 3–7(–9) per cluster, turbinate, 1.5–3 × 1–2.5 mm, glabrous or thinly floccose. Flowers 2–3 mm; perianth greenish- to creamy- or pale yellowish-white, rarely pale yellow or yellow, glabrous.


Phenology: Flowering Jul–Sep.
Habitat: Gravelly to rocky, mostly limestone slopes and ridge tops, high-elevation sagebrush communities, subalpine conifer woodlands
Elevation: 2400-2600 m

Discussion

Variety nanum is restricted to the Wasatch Mountains in Box Elder and Weber counties.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Reveal) S. L. Welsh +
Eriogonum nanum +
Dwarf wild buckwheat +
2400-2600 m +
Gravelly to rocky, mostly limestone slopes and ridge tops, high-elevation sagebrush communities, subalpine conifer woodlands +
Flowering Jul–Sep. +
Great Basin Naturalist +
Eriogonum grayi +
Eriogonum brevicaule var. nanum +
Eriogonum brevicaule +
variety +