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FNA | Family List | FNA Vol. 20 | Asteraceae | Erigeron

34b. Erigeron clokeyi Cronquist var. pinzliae G. L. Nesom, Sida. 21: 28. 2004.

Leaves uniformly hispidulous to hirsutulous (hairs spreading to spreading-arching, stiff). Cypselae 1.8–2 mm. 2n = 18.

Flowering Jun–Sep. Dry, rocky habitats, dry meadows, sometimes with sagebrush or mountain mahogany, common in treeless areas, often with yellow, bristlecone, or limber pine; 2200–3500 m; Calif., Nev., Utah.

Variety pinzliae is found in California, central Nevada, and west-central Utah. It apparently is discontinuously different from var. clokeyi and might be better treated at specific rank. Its relationship to Erigeron pygmaeus should be studied in such a consideration.


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