Sorbus sitchensis: Difference between revisions

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
Species:	S. sitchensis
Binomial name
	Sorbus sitchensis; M.Roem.
	Range of Sorbus sitchensis

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Revision as of 08:18, 24 December 2019

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

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]

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

Winter buds: Not sticky with rusty hairs.
Leaves: Alternate, compound, six to ten inches long, Leaflets seven to ten, blue-green, lanceolate or long oval, with rounded tip, toothed usually from the middle to the end. In autumn they turn yellow, orange and red. Stipules leaf-like, caducous.
Flowers: After the leaves are fully grown, June through September.^[4] White, small, 80 or fewer, borne in flat compound cymes three or four inches across.
Fruit: Berry-like pome, globular, one-quarter of an inch across, bright pinkish^[1] red, borne in cymous clusters. They are enjoyed by the Richardson's grouse.^[5]

^ ^a ^b McAllister, H.A. 2005. The genus Sorbus: Mountain Ash and other Rowans . Kew Publishing.
^ USDA, NRCS (n.d.). "Sorbus sitchensis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 24 November 2015.
^ Pojar, Jim; Andy MacKinnon (1994). Plants of the Pacific Northwest. Lone Pine Publishing. p. 71. ISBN 1-55105-042-0.
^ Sullivan, Steven. K. (2013). "Sorbus sitchensis". Wildflower Search. Retrieved 2013-03-17.
^ Peattie, Donald Culross (1953). A Natural History of Western Trees. New York: Bonanza Books. p. 510.

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@@ Line 29: / Line 29: @@
 ; Flowers: After the leaves are fully grown, June through September.<ref name="Sullivan2013">{{cite web | last = Sullivan | first = Steven. K. | title = Sorbus sitchensis | work = Wildflower Search | date = 2013 | url = http://www.wildflowersearch.com/search?oldstate=bloom%3AIgnore%3B&PlantName=Sorbus+sitchensis | accessdate = 2013-03-17 }}
 </ref>  White, small, 80 or fewer, borne in flat compound cymes three or four inches across.
-; Fruit: Berry-like pome, globular, one-quarter of an inch across, bright pinkish<ref name=McAllister2005/> red, borne in cymous clusters.
+; Fruit: Berry-like pome, globular, one-quarter of an inch across, bright pinkish<ref name=McAllister2005/> red, borne in cymous clusters. They are enjoyed by the Richardson's grouse.<ref>{{cite book |last=Peattie |first=Donald Culross |authorlink=Donald C. Peattie |title=A Natural History of Western Trees |year=1953 |publisher=[[Bonanza Books]] |location=New York |p=510}}</ref>
 [[Image:Sorbus_sitchensis_26638.JPG|left|thumb|''Sorbus sitchensis'' fall foliage and fruit]]
 {{clear}}