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.[3] 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[4] red, borne in cymous clusters. They are enjoyed by the Richardson's grouse.[5]
Size: Typically grows as a small tree or shrub, reaching heights of 1-4 meters.
Environment: Prefers moist, well-drained soils and is commonly found in mountainous regions, coastal forests, and along stream banks.
Sorbus sitchensis fall foliage and fruit
Uses
While not choice eating, the fruits are consumed by some birds in winter.[6]
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