Pterocarya fraxinifolia (Caucasian Wingnut)
Native: Caucasus and northern Iran
Location: Occasionally planted for timber or ornament in Europe.
Has a short thick trunk.
Leaves may be over 60cm long, but usually less with 7-27 stalkless leaflets, hairless on upper surface with tufts of hairs beneath. The common stalk is round and smooth.
Flowers open in April, male catkins thick and green, 7.5-12.5cm long, females longer with more scattered flowers bearing red style developing into fruiting catkins.
Fruiting catkins 30-50cm long with nuts surrounded by green wings about 1.8cm across.