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Penthorum Linnaeus. Penthorum, Ditch-stonecrop.

A genus of 2 species, herbs, of e. North America and e. and se. Asia. The only other species in the genus is P. chinense Pursh, of e. Russia, China, Korea, and Japan.

Ref: Freeman (2009a) In Flora of North America Editorial Committee (2009); Haskins & Hayden (1987); Thiede In Kubitzki, Bayer, & Stevens (2007). Show full citations.

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