Deciduous shrub or tree, up to 12 m tall, usually 2-5 m tall, new growth short-hairy; axillary buds with short stalks; bark scaly, often lichen-covered, yellowish-brown or grey.
Alternate, deciduous, smooth, coarsely to irregularly toothed, the teeth pointing outwards, leaf margins not rolled under, brownish in the fall.
Inflorescence of male and female catkins, which open before the leaves on previous year's growth; male catkins with stalks.
Small nutlets, without wings; female cones 1-1.5 cm long, egg-shaped.
Present from Spring to Summer
Source: The USDA
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|BG(20), BWBS(335), CWH(17), ESSF(111), ICH(446), IDF(215), MH(1), MS(207), PP(15), SBPS(35), SBS(675), SWB(1)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Alnus tenuifolia Nutt.