Pterocarya rhoifolia

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Pterocarya rhoifolia
Pterocarya rhoifolia SZ150.png
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Juglandaceae
Genus: Pterocarya
P. rhoifolia
Binomial name
Pterocarya rhoifolia

Pterocarya rhoifolia (Japanese wingnut, Japanese: sawagurumi)[1] is a species of tree in the Juglandaceae family that is widely distributed throughout Japan, and also found native to China in the Laoshan District in eastern Shandong Province.[2][3]

Fruiting tree

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.[4]


  1. ^ Nōrin Suisan Yōgo Kenkyūkai, ed. (1992). Waei eiwa nōrin suisan yōgo taiyaku jiten 和英英和農林水産用語対訳辞典 [J-E/E-J dict. of agriculture, forestry and fishery terminology translated side-by-side]. Gyōsei. p. 383. ISBN 9784324032046.
  2. ^ Rix, Martyn (August 2007). "594. PTEROCARYA MACROPTERA var. INSIGNIS: Juglandaceae". Curtis's Botanical Magazine. 24 (3): 180. doi:10.1111/j.1467-8748.2007.00583.x. JSTOR 45065824.
  3. ^ a b "Flora of China" (PDF). Harvard University. 1999: 280–282. Retrieved 2010-05-15. {{cite journal}}: Cite journal requires |journal= (help)
  4. ^ Bruce, Herbert Dale (1951). Properties and Uses of Commercially Important Japanese Woods. General Headquarters, Supreme Commander for the Allied Powers, Natural Resources Section. p. 51.