Wednesday, 13 March 2013

Alnus Glutinosa; Common Alder

A small spreading tree with a broad domed or conical crown. Can sometimes be multi stemmed. They have very tough roots and are often used to help stabilise river banks and prevent erosion.


The leaves are stalked and noticeably rounded. They grow up to 10cm long and have a slightly notched apex and a wavy or blunty toothed margin. The buds are about 7mm long, on stalks 3mm long

The branches are ascending in young trees but become more spread as it matures. The twigs are sticky when young but turn smooth as it grows. 


The bark is brownish and fissured into square or oblong plates. 


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