Plant Genera


Family Code: ORCHID
Genus Code: ISOTR
Genus CN: fiveleaf orchid
Genus Authority: Raf.
Genus Summary: A genus of 2 species, of e. North America. Cameron & Chase (1999) indicate that Isotria should perhaps be included in a more broadly circumscribed Pogonia (as was often done prior to 1922); Chase et al. (2015) retain it as a separate genus.
Genus Identification: Identification notes: Sterile Isotria is sometimes confused with Medeola. Medeola has a wiry stem, with floccose hairiness, at least toward the base. Isotria has a fleshier stem, lacking hairs.
Genus References: Mehrhoff & Homoya in FNA (2002a); Correll (1950)=X.
Last Updated: 2019-11-29
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