Photo: Ostrya carpinifolia 1.

Leaf and green seed. Kew Garden, London, UK. Planted. 2004-06-03.
Ostrya carpinifolia Scop. Engl.: European hop-hornbeam, hop-hornbeam, ironwood, lever-wood. Bot. syn.: Ostrya virginica Willd.
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Photo: Ostrya carpinifolia 1.