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Published In: Species Plantarum 1: 557. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 9/8/2017)
Acceptance : Accepted

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12. Isopyrum L.

Sixteen species, North America, Europe, Asia.

Some authors have treated the genus Isopyrum in a relatively restricted sense, with several species groups segregated as separate genera (Tamura and Lauener, 1968; Tamura, 1984, 1993). Among these, the eight species of Isopyrum in the strict sense have basally attached, tiny, nectar-secreting petals. Species that lack petals are then treated as the genus Enemion Raf., which includes E. biternatum of eastern temperate North America, four species that are each narrowly endemic in portions of the western United States and Canada, and one eastern Asian species.

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