Eucephalus glabratus

Eucephalus glabratus is a North American species of flowering plant in the aster family with the common names of smooth aster[3], smooth wayside-aster,[1] and Siskiyou aster.[4] It is a perennial herb up to 60 centimeters (24 inches) tall, with branching rhizomes. Stems and leaves are hairless or nearly so. One plant will usually produce 3–8 flower heads per stem. Each head has 0–4 violet ray florets surrounding numerous yellow disc florets.[5]

Eucephalus glabratus

Apparently Secure  (NatureServe)[1]
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Astereae
Genus:
Eucephalus
Species:
E. glabratus
Binomial name
Eucephalus glabratus
Synonyms[2]

Eucephalus glabratus grows at elevations of 700–2,300 meters (2,300–7,550 feet) in openings in oak and conifer forests or chaparral[5] of the Klamath Mountains[6] of southwestern Oregon and northwestern California.[7]

NatureServe classifies Eucephalus glabratus as Apparently Secure (G4) globally and Vulnerable (S3) in California. It has no state status rank for Oregon.[1]

References
  1. NatureServe Explorer conservation status - Eucephalus glabratus (Smooth Wayside-aster)
  2. The Plant List, Eucephalus glabratus (Greene) Greene
  3. USDA PLANTS Database
  4. California Native Plant Society
  5. Flora of North America, Eucephalus glabratus (Greene) Greene, 1896. Siskiyou aster
  6. University of Waterloo Asteraea Lab - Eucephalus glabratus
  7. Biota of North America Program 2014 county distribution map
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