Sorbus sitchensis

Sitka mountain-ash
Sorbus sitchensis flower cymes
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Genus: Sorbus
Subgenus: Sorbus
Section: Tianshanicae[1]
Species: S. sitchensis
Binomial name
Sorbus sitchensis
M.Roem.

Sorbus sitchensis, also known as western mountain ash[2] and Sitka mountain-ash, is a small shrub of northwestern North America.

Description

A multistemmed shrub, it is endemic to northwestern North America, from the Pacific coast of Alaska, to the mountains of Washington, Oregon and northern California and eastward to parts of Idaho and western Alberta and Montana. It is widespread in British Columbia.[3]

Sorbus sitchensis fall foliage and fruit

The otherwise similar Sorbus scopulina has yellow-green sharp-pointed leaflets that are sharply serrated over most of their length.

Natural range

References

Wikimedia Commons has media related to Sorbus sitchensis.
  1. 1 2 McAllister, H.A. 2005. The genus Sorbus: Mountain Ash and other Rowans . Kew Publishing.
  2. "Sorbus sitchensis". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 24 November 2015.
  3. Pojar, Jim; Andy MacKinnon (1994). Plants of the Pacific Northwest. Lone Pine Publishing. p. 71. ISBN 1-55105-042-0.
  4. Sullivan, Steven. K. (2013). "Sorbus sitchensis". Wildflower Search. Retrieved 2013-03-17.


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