Alnus subcordata is a species of deciduous broadleaf flowering plants (in the Betulaceae or Birch family), native to the Caucasus and northern Iran. Alnus subcordata is a medium to large rapidly growing tree which tolerates moist conditions. Its broad rounded green leaves have a slightly heart-shaped base and turn yellow in autumn before falling. In spring, the tree produces long male catkins and smaller female cones, which persist on the branches through winter. Like other alders, Alnus subcordata has nitrogen-fixing roots that improve soil fertility, making them useful in woodland planting, land restoration, and along riverbanks or wet sites.
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Marker of a British Isles champion tree in
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