(A.Gray) A.Gray 1880
Erigeron tener is a North American species of flowering plant in the daisy family known by the common name slender fleabane. It is native to the western United States, largely in the Great Basin, in the states of California, Arizona, Nevada, Utah, Oregon, Wyoming, Idaho, and Montana.
Erigeron tener grows in open, rocky habitats. It is a perennial herb up to 20 centimeters (8 inches) tall, producing a large taproot and a woody caudex. It is surrounded at the base by narrow oval leaves up to 8 cm (3.2 inches) long, on petioles. There may be a few much smaller leaves along the stem. The inflorescence is made up of 1-3 flower heads per stem, each head lined with hairy, glandular phyllaries. The head contains 15–40 blue or purple ray florets surrounding numerous yellow disc florets.
- Tropicos, Erigeron tener (A. Gray) A. Gray List
- Calflora taxon report, University of California, Erigeron tener A. Gray, slender fleabane
- Biota of North America Program, 2014 county distribution map
- Flora of North America, Erigeron tener (A. Gray) A. Gray, 1880. Slender fleabane
- Hitchcock, C. H., A.J. Cronquist, F. M. Ownbey & J. W. Thompson. 1984. Compositae. Part V.: 1–343. In C. L. Hitchcock Vascular Plants of the Pacific Northwest, University of Washington Press, Seattle.
- Jepson Manual Treatment
- United States Department of AgriculturePlants Profile
- Calphotos Photo gallery, University of California
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