Micranthes forbesii (Vasey) Bush. Section: Micranthes. Phen: May; June Hab: Moist shaded sandstone cliffs, especially north-facing and often in seasonal seepage. Dist: Sw. WI, se. MN, and e. IA south to s. IL and se. MO.
Origin/Endemic status: Native
Taxonomy Comments: Based on morphology and habitat, M. forbesii appears to be a 'good taxon' at some rank and readily separable from M. pensylvanica; it needs additional study.
Synonymy: = Il; = Micranthes pensylvanica (L.) Haw. var. forbesii (Vasey) Bush; = Saxifraga forbesii Vasey – G; < Micranthes pensylvanica (L.) Haw. – C, FNA8, K3, K4; < Saxifraga pensylvanica L. – F