Eriogonum umbellatum var. ellipticum

Plants herbs, often rather compact mats, 1–3.5 dm tall, 2–5 dm across; aerial flowering stems erect, 0.7–2 (3) dm long, thinly floccose or glabrous, without one or more foliaceous bracts about midlength; leaves in loose rosettes, the blades usually elliptic, 1.5–3 (4) cm long, 1–1.5 cm wide, tomentose abaxially, usually glabrous adaxially, the margins plane; inflorescences compound-umbellate, branched 2–4 times, the branches thinly floccose or glabrous, without a whorl of bracts about midlength; involucral tubes 2–4 mm long, the lobes 2–4 mm long; flowers 6–8 mm long, the perianth bright yellow.

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During a four pictures sequence, the filament of the stamen, of a flower of Eriogonum umbellatum var. ellipticum, is cut, by the green insect, at the base of the anther. 


Flowering Jun-Sep. Sandy to gravelly flats and slopes, mixed grassland and sagebrush communities, montane conifer woodlands; 700–2400 m; eastern Oregon (Baker, Grant, Harney, Malheur, Morrow, Umatilla, Union and Wallowa cos.) and southeastern Washington (Columbia and Walla Walla cos.) east across northern and central Idaho (Ada, Adams, Bingham, Blaine, Boise, Custer, Elmore, Gem, Lemhi, Owyhee, Washington and Valley cos.) to western Montana (Ravalli Co.).

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