Erigeron robustior
Erigeron robustior is a North American species of flowering plant in the daisy family known by the common name White cushion fleabane[2] or Willamette fleabane.[3] It is native to the southwestern Oregon and northern California in the western United States.[4][3]
| Erigeron robustior | |
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| Species: | E. robustior |
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| Erigeron robustior (Cronquist) G.L.Nesom | |
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Erigeron robustior grows in rocky of gravely slopes, sometimes in serpentine soil. It is an perennial herb up to 55 centimeters (22 inches) tall, forming a thin tap root, not growing into colonies as do some of the other species in the genus. The inflorescence usually contains 1-3 flower heads. Each head contains 21–36 white or pink ray florets surrounding many yellow disc florets.[2][5]
References
- The Plant List, Erigeron robustior (Cronquist) G.L.Nesom
- Flora of North America, Erigeron robustior (Cronquist) G. L. Nesom, 2004. White cushion fleabane
- Calflora taxon report, University of California, Erigeron robustior (Cronq.) Nesom, Willamette fleabane
- Biota of North America Program 2014 county distribution map
- Nesom, Guy L. 2004. Sida 21(1): 21-22
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