Sorbus sitchensis
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Sitka Mountain-ash | ||||||||||||||||||
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Sorbus sitchensis fall foliage and fruit
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Scientific classification | ||||||||||||||||||
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Binomial name | ||||||||||||||||||
Sorbus sitchensis M. Roemer |
Sorbus sitchensis, also known as Sitka Mountain-ash, is a small shrub of the western United States.
[edit] Description
A multistemed shrub, it is indigenous to the Pacific Coast of the North America from Alaska to northern California and eastward to Idaho and western Montana.[1]
The otherwise similar Sorbus scopulina has yellow-green sharp-pointed leaflets that are sharply pointed 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 full grown. 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 red, borne in cymous clusters.
[edit] References
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- ^ Pojar, Jim; Andy MacKinnon (1994). Plants of the Pacific Northwest. Lone Pine Publishing, 71. ISBN 1-55105-042-0.