Native Plant Database

Alnus incana ssp. tenuifolia (Nutt.) Breitung

Thinleaf alder

Betulaceae (Birch Family)

Shrub with spreading, slender branches or sometimes a small tree with several trunks and a rounded crown; often forming thickets.

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Plant Characteristics

Duration: Perennial
Habit: Tree
Leaf Retention: Deciduous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Pinnate
Breeding System: Flowers Unisexual , Monoecious
Leaf: Dark Green
Flower:
Fruit:
Size Class: 12-36 ft.

Bloom Information

Bloom Color: Purple
Bloom Time: Mar , Apr

Distribution

USA: AK , AZ , CA , CO , ID , MT , NV , NM , OR , UT , WA , WY
Canada: AB , BC , SK , YT
Native Habitat: Woodland
USDA Native Status: L48(N), AK(N), CAN(N)

Growing Conditions

Water Use: High
Light Requirement: Sun
Soil Moisture: Moist
CaCO3 Tolerance: None

Last Update: 2007-01-01