#wingnut any tree of the genus Pterocarya; fruit is a small winged nutlet; Caucasus to southeastern Asia
supertype: #nut_tree__nuttree tree bearing edible nuts
member of: #genus_Pterocarya
subtype: #Caucasian_walnut__Pterocarya_fraxinifolia medium-sized Caucasian much-branched tree distinguished from other walnut trees by its winged fruit
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