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Common Alder Alnus glutinosa Betulaceae Height to 25m. Spreading, often multi-stemmed tree. Bark Brownish, fissured into squarish plates. Branches Ascending in young trees. Young twigs sticky. Buds 7mm long, on 3mm-long stalks. Leaves Stalked, to 10cm long, rounded with notched apex. Reproductive parts Purplish male catkins, in bunches of 2–3, appear first in winter. Female catkins cone-like, reddish at first ripening green by summer. Status Common beside water.
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133254
Common Alder Alnus glutinosa Betulaceae Height to 25m. Spreading, often multi-stemmed tree. Bark Brownish, fissured into squarish plates. Branches Ascending in young trees. Young twigs sticky. Buds 7mm long, on 3mm-long stalks. Leaves Stalked, to 10cm long, rounded with notched apex. Reproductive parts Purplish male catkins, in bunches of 2–3, appear first in winter. Female catkins cone-like, reddish at first ripening green by summer. Status Common beside water.

Filename: 133254.jpg
Size: 2353x3543 / 6.4MB
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Date: 17 Feb 2006
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Credit: PAUL STERRY/NPL
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Model Release: No
Property Release: No
Restrictions: Nature Photographers Ltd., West Wit, New Road, Little London, Tadley, Hampshire, RG26 5EU. Tel: +44(0)1256 850661 web: www.naturephotographers.co.uk
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