Mountain Alder (Alnus incana ssp. tenuifolia) is a native tree or shrub that grows in northern, southern and central California. It is fast growing and moderately long-lived. It grows in an upright form to a height of 20 feet, with active growth during the spring and summer. Flowers are purple and bloom in the early spring. Leaves are dark green and deciduous. It tends to grow in wet places, at elevations from 4500-8000 feet.
Alnus incana ssp. tenuifolia
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