Ericameria nauseosa var. oreophila
Phytologia 78: 64. 1995.
Plants 70–250 cm. Stems greenish, usually leafy, compactly tomentose. Leaves yellowish green; blades 1-nerved, filiform to linear, 20–50 × 0.8–1 mm, faces glabrate. Involucres 6.5–10 mm. Phyllaries 11–20, apices erect, acute, glabrous. Corollas 6–9 mm, tubes glabrous, lobes 1.5–2.5 mm, glabrous; style appendages shorter than or equaling stigmatic portions. Cypselae hairy (sometimes glabrous in Idaho populations); pappi 4.2–7.6 mm. 2n = 18 (as Chrysothamnus nauseosus subsp. consimilis).
Phenology: Flowering late summer–fall.
Habitat: Alkaline valleys and plains
Elevation: 1200–3000 m
Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wyo., Mexico (Baja California)
The names Chrysothamnus nauseosus subsp. consimilis and var. consimilis (Ericameria nauseosa subsp. consimilis) have been used for this taxon; an equivalent combination has not been made at the varietal level in Ericameria. Variety oreophila intergrades with vars. mohavensis and speciosa.
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