Species of shrub
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Sorbus decora, commonly known as the northern mountain ash, showy mountain-ash, Greenland mountain-ash, and dogberry, is a species of deciduous shrub or very small tree native to northeastern North America. 
Description.
"Sorbus decora" grows tall. Its leaves are odd-pinnately compound, with 11–17 leaflets. Each leaflet is long and wide. All parts are hairless to slightly hairy. Flowers are borne in 125- to more than 400-flowered panicles across. Each flower is across and has five white petals long, 14–20 stamens, and carpels with 3–4 styles. The fruits (pomes) are bright red to orange-red and across.
Distribution and habitat.
"Sorbus decora" occurs throughout the Laurentian Mixed Forest Province, the New England-Acadian forest region, the eastern Canadian boreal forests and Greenland. It cannot be found north of 62°15′N, which confines it the southern tip of Greenland, generally deeper up the western fjords, such as the Qinngua Valley.
Similar species.
"Sorbus decora" is very similar to the closely related American mountain-ash ("Sorbus americana"). Like the American mountain-ash, the showy mountain-ash has odd-pinnately compound leaves and often large clusters of flowers and fruits. Showy mountain-ash can be distinguished by its shiny, sticky buds, and its slightly larger flowers and fruit. It is said to bloom a week earlier.
Uses.
It is often cultivated as an ornamental plant for its cold-hardiness, its attractive flowers, and its large clusters of small red berry-like pomes.
The fruits are an important source of food for wildlife, particularly birds in the winter and early spring.
References.
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