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Common Alder

Alnus glutinosa

Please keep in mind that it is illegal to uproot a plant without the landowner's consent and care should be taken at all times not to damage wild plants. Wild plants should never be picked for pleasure and some plants are protected by law.
For more information please download the BSBI Code of Conduct PDF document.

Plant Data

Flowering Months:
JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC
Order:
Fagales
Family:
Betulaceae (Birch)
Type:
Deciduous tree
Maximum Size:
20 metres tall
Habitats:
Riverbanks, waterside, woodland.

Flower:
֍
Yellow, no petals
 
Yellow and pendulous (male catkins). Green and oval (female catkins). Male and female catkins present on same tree, and grouped in clusters of 3-8 on each stalk.
Fruit:
In winter the catkins turn into hard, dark, cone-like fruit which eventually release the seeds.
Leaves:
Deciduous. Round, dark green, leathery, smooth, serrated edges.
Frequency (UK):
Abundant  
Distribution Map

Reproduced by kind permission of the BSBI.

Click to open an Interactive Map