Scientific Name: Alnus hirsuta
Common Name: Manchurian alder
Family Name: Betulaceae
Origin: B.C. west of Cascades, Central / west Asia, S.E. Asia / Japan / China
Hardiness Zone: Zone 3: (-40 to -34 °C)
Plant Type: Tree - deciduous
Mature Size: 15 - 22m x 7 - 10m (height x width)
Habit: Stiffly upright
Form: Oval - vertical
Texture: Medium
Landscape Uses: Erosion control, Native planting, Tall background, Wetland - bogs, Woodland margin
Exposure: Full sun only if soil kept moist, Part sun/part shade
Soil or Media: Humus rich, Well-drained
Leaves: Simple, Alternate, Soft flexible, Heavily veined, Pinnate venation, Glabrous, Lustrous, Lanceolate, Ovate, Double serrate
Flowers: Catkin (ament), Yellow, Mar-Apr
Fruit: Samara, Brown, Aug-Sep-Oct, (Persistent)
Key ID Features:
Leaves alternate, ovate, most blades 7-12cm long x 4-8cm wide; coarsely double-serrate, pubescent, with heavy parallel major veins; monecious, catkins persistent. Winter ID: angular, gray pubescence when young; buds with with 2 or 3 scales.