Pterocarya Rhoifolia
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''Pterocarya rhoifolia'' (Japanese wingnut, Japanese: ''sawagurumi'') is a species of
tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...
in the
Juglandaceae The Juglandaceae are a plant family known as the walnut family. They are trees, or sometimes shrubs, in the order Fagales. Members of this family are native to the Americas, Eurasia, and Southeast Asia. The nine or ten genera in the family have ...
family that is widely distributed throughout Japan, and also found native to
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
in the
Laoshan District Laoshan District () is an urban district (区) of Qingdao, Shandong. It has an area of and had approximately 379,500 inhabitants as of 2010. It is home to Mount Lao, which gave the district its name. Geography Laoshan District is located in the ...
in eastern
Shandong Province Shandong ( , ; ; alternately romanized as Shantung) is a coastal province of the People's Republic of China and is part of the East China region. Shandong has played a major role in Chinese history since the beginning of Chinese civilizatio ...
. The tree flourishes in moist areas along riverbanks and mountain streams, and attains in height, flowering from May–July. It is a soft light wood, with the heartwood yellowish-white in color, which has been used as a substitute of ''kiri'' (''
Paulownia tomentosa ''Paulownia tomentosa'', common names princess tree, empress tree, or foxglove-tree, is a deciduous hardwood tree in the family Paulowniaceae, native to central and western China. It is an extremely fast-growing tree with seeds that disperse rea ...
''), for example, to make ''
geta Geta may refer to: Places *Geta (woreda), a woreda in Ethiopia's Southern Nations, Nationalities, and Peoples' Region *Geta, Åland, a municipality in Finland *Geta, Nepal, a town in Attariya Municipality, Kailali District, Seti Zone, Nepal *Getà ...
'' 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.


References

rhoifolia Trees of China Trees of Japan {{Fagales-stub