Sorbus sitchensis
| Sitka Mountain-ash | |
|---|---|
| |
| Sorbus sitchensis flower cymes | |
| Scientific classification | |
| Kingdom: | |
| (unranked): | |
| (unranked): | |
| (unranked): | |
| Order: | |
| Family: | |
| Genus: | |
| Subgenus: | |
| Section: | Tianshanicae[1]
|
| Species: | S. sitchensis
|
| Binomial name | |
| Sorbus sitchensis | |
Sorbus sitchensis, also known as Sitka Mountain-ash, is a small shrub of the western North America.
Description
A multistemmed shrub, it is indigenous to the Pacific Coast of North America. Primarily British Columbia but also parts of Western United States and Alberta.[2]
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. 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.
References
Wikimedia Commons has media related to Sorbus sitchensis.
 | This Rosales article is a stub. You can help Wikipedia by expanding it. |