Alder Buckthorn by Anne Tanne 1/1

Alder Buckthorn Frangula alnus

Alder Buckthorn is a small, thornless tree of wet woodland, riverbanks and heathlands. It is widespread, but scarce, across England and Wales. Clusters of pale green flowers appear in late spring and bunches of red berries ripen to a purple-black colour in autumn. Both Alder and Purging Buckthorn are the main foodplants of the Brimstone Butterfly.

Conservation status

Common.

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