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Platycladus
''Platycladus'' is a distinct genus of evergreen coniferous tree in the cypress family Cupressaceae, containing only one species, ''Platycladus orientalis'', also known as Oriental arborvitae, Chinese arborvitae, biota or oriental thuja. It is native to northwestern China, Korea, and the Russian Far East (Amur + Khabarovsk).〔(Kew World Checklist of Selected Plant Families )〕〔(Flora of China Vol. 4 Page 64 侧柏 ce bai ''Platycladus orientalis'' (Linnaeus) Franco, Portugaliae Acta Biol., ser. B, Sist. Vol. "Júlio Henriques". 33. 1949. )〕 It is also now naturalised as an introduced species elsewhere in Asia: eastward to Japan; southward to northern India; and westward to northern Iran.
==Taxonomy==
Although generally accepted as the only member of its genus, it has been suggested that the closely related species ''Microbiota decussata'' could be included in ''Platycladus'', but this is not widely followed. Other fairly close relatives are ''Juniperus'' and ''Cupressus'', both of these genera being graft-compatible with ''Platycladus''. In older texts, ''Platycladus'' was often included in ''Thuja'', which is reflected in one of its common names, "oriental thuja". But it is only distantly related to the genus ''Thuja''. Differences include its distinct cones, wingless seeds, and its almost scentless foliage.
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