Ionactis stenomeres

Ionactis stenomeres, the Rocky Mountain aster,[2] is a rare North American species in the sunflower family. It in the Province of British Columbia in western Canada and also in the northwestern United States (Washington, Idaho, Montana).[3]

Ionactis stenomeres
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Ionactis
Species:
I. stenomeres
Binomial name
Ionactis stenomeres
(A.Gray) Greene 1897
Synonyms[1]
  • Aster stenomeres A. Gray 1882

Description

Ionactis stenomeres is a small perennial up to 30 cm (12 in) tall, with a woody underground caudex. The plant usually produces only one flower head, each with 7-21 blue or lavender ray flowers surrounding yellow disc flowers.[4][5]

References
  1. Tropicos, Aster stenomeres A. Gray
  2. "Ionactis stenomeres". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 5 August 2015.
  3. Biota of North America Program 2014 county distribution map
  4. Flora of North America, Ionactis stenomeres (A. Gray) Greene, 1897. Rocky Mountain ankle-aster
  5. Montana Field Guides, Rocky Mountain Aster - Ionactis stenomeres with photos


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