Pterocarya rhoifolia, commonly known as Japanese wingnut, is a species of tree in the family Juglandaceae.
It is widely distributed throughout Japan, and also found in China in the Laoshan District of eastern Shandong Province.
[1] The tree flourishes in moist areas along riverbanks and mountain streams, and attains 30 m (98 ft) in height, flowering from May–July.
[3] It is a soft light wood, with the heartwood yellowish-white in color, which has been used as a substitute of kiri (Paulownia tomentosa), for example, to make geta clogs that are imitations of kiri-geta.
It is straight-grained and the pore pattern on the surface provides the wood with a handsome appearance.