River alder

Alnus incana ssp. Tenuifolia

Plant Characteristics

Plant Type	Tall Shrub, Pioneer Tree
Height (m)	2-8
Width (m)	2-4
Growth Rate	Fast
Pollination Strategy	Wind
Flower Period	April, May
Forage Value	Poor
Fruit Type	Nutlet
Edible Fruit	No
Fruit/Seeds Available	Fall, Winter
Traits	Nitrogen Fixer

Site Characteristics

Natural Region	Boreal, Aspen Parkland, Foothills
Hardiness Zone	5-8
Soil Texture	Clay, Loam
Drainage	Poor-Moderate
Moisture Tolerance	Wet, Moist
Sun Exposure	Full, Partial Shade

This database was created by AWES, with support from Cows and Fish (Alberta Riparian Habitat Management Society) and the Alberta Native Plant Council. Contact AWES for a list of references used. Financial support for this database was provided by the Canadian Agricultural Partnership.

Agroforestry & Woodlot Extension Society

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