Alnus viridis subsp. crispa (Green Adler)


Botanical Information

GenusAlnus
Speciesviridis
Subspeciescrispa
CategoryWoody
TypeShrub (deciduous)
OriginCanada, North-Eastern United States (Labrador to North Carolina).

Details

USDA Hardiness Zone2
USDA Hardiness Ref.
Canadian Hardiness Zone0
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)(-46) - (-40)
Temperature (°F)(-50) - (-40)
Height3 m
Flowering PeriodApril, May

Description and Growing Information

General DescriptionThis spreading, compact shrub has been placed on the IUCN Red List as least concern.
ShapeA shrub, either prostate or erect to 3 m.
CultivationTolerant of very infertile and wet sites.
Notable SpecimensThe Memorial University of Newfoundland Botanical Garden, St. John's, Newfoundland, Canada.
HabitatAlong streams, lake shores, coasts or bogs in thickets, sandy/gravelly slopes or flats at an altitude of 0-2,000 m.
Bark/Stem DescriptionGreyish-brown in colour.
Leaf DescriptionLeaves to 3-8 cm, ovate-broadly elliptic, slightly sticky when first appearing. Leaves are also aromatic and bright green.
Flower DescriptionCatkins showing in clusters of 3-6.

Photographs