Plant Genera


Family Code: SAXIFR
Genus Code: MICRAN
Genus CN: Saxifrage
Genus Summary: A genus of about 60-75 species, perennials, mostly of north temperate, boreal, and arctic regions of North America, South America, and Eurasia. As shown by molecular data, Saxifraga, as often broadly defined, is polyphyletic, and all of our species either belong in Micranthes (Soltis 1995, Soltis et al. 1996, Mort & Soltis 1999), or with further separation into Micranthes and Hydatica (as followed here). Soltis et al. (1996) demonstrate that Micranthes is closely allied with Heuchera, Mitella, and Tiarella, less closely related to Astilbe, Boykinia, Sullivantia, and Chrysosplenium, and least closely related to the bulk of Saxifraga.
Genus Identification:
Genus References: Elvander & Brouillet in FNA (2009); Lanning (2009)=Y; Brouillet & Gornall (2007)=Z; Soltis in Kubitzki, Bayer, & Stevens (2007). Key based on various sources, including Lanning (2009).
Last Updated: 2019-11-30
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