Thuja Linnaeus. Arborvitae.
A genus of 5 species, trees, of e. North America, w. North America, and e. Asia. Our eastern North American Thuja occidentalis is sister to Thuja koraiensis Nakai, primarily of North Korea (small populations in s. Korea and ne. China).
Ref: Chambers (1993) In Flora of North America Editorial Committee (1993b); Li et al. (2022); Page In Kramer & Green (1990). Show full citations.
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