We found 2 definitions of common alder from 2 different sources.
Noun |
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common alder - medium-sized tree with brown-black bark and woody fruiting catkins; leaves are hairy beneath | ||
European black alder, Alnus glutinosa, Alnus vulgaris | ||
alder tree, alder north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant |