Eriogonum brevicaule var. brevicaule
Plants erect, (0.8–) 1.5–4 (–5) × 2–5 (–8) dm. Aerial flowering-stems erect, 1–2.5 dm, glabrous. Leaves: blade linear to oblanceolate, 3–10 × 0.1–0.7 cm, tomentose abaxially, less so to thinly floccose and green adaxially, margins plane. Inflorescences cymose, usually divided 3 or more times, (3–) 5–25 cm; branches glabrous. Involucres 1 per node, turbinate to turbinate-campanulate, 2–4 × (1–) 1.5–2.5 (–3) mm, glabrous. Flowers (2–) 2.5–3 mm; perianth yellow, rarely white or cream, glabrous.
Phenology: Flowering Jun–Sep.
Habitat: Sandy to clayey flats, washes and slopes, mixed grassland and sagebrush communities, juniper or montane conifer woodlands
Elevation: 1400-3000 m
Distribution
Colo., Idaho, Nebr., S.Dak., Utah, Wyo.
Discussion
Variety brevicaule is widely scattered in northwestern and north-central Colorado, southeastern Idaho, western Nebraska, southwestern South Dakota, northern Utah, and Wyoming. Plants with white or cream-colored perianths occur in southwestern Wyoming and have been called var. grangerense. Hybrids involving var. brevicaule and E. corymbosum var. corymbosum are known from southwestern Wyoming.
Selected References
None.
Lower Taxa
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