Chaenactis evermannii

Chaenactis evermannii is a North American species of flowering plants in the aster family known by the common name Evermann's pincushion. It is found only at high altitudes in the mountains in the central part of the US State of Idaho.[2][3]

Chaenactis evermannii
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Heliantheae
Genus:
Chaenactis
Species:
C. evermannii
Binomial name
Chaenactis evermannii
Synonyms[1]
  • Chaenactis mainsiana A.Nelson & J.F.Macbr.
  • Chaenactis nevadensis var. mainsiana (A.Nelson & J.F.Macbr.) Stockw.

Description

Chaenactis evermannii is a small perennial rarely more than 12 cm (5 inches) tall. Each branch produces 1-3 flower heads each containing disc florets but no ray florets.[4][5]

The species is named for American ichthyologist Barton Warren Evermann (1853–1932).[5]

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References
  1. The Plant List, Chaenactis evermannii Greene
  2. Biota of North America Program 2014 county distribution map
  3. 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.
  4. Flora of North America, Evermann’s pincushion, Chaenactis evermannii Greene
  5. Greene, Edward Lee 1912. Leaflets of Botanical Observation and Criticism 2(10): 224


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