Saxifraga pensylvanica subsp. tenuirostrata G.W. Burns
Saxifraga pensylvanica subsp. tenuirostrata G.W. Burns is a synonym sensu FNA Ed. Comm., 2009 of:
Micranthes pensylvanica (Linnaeus) Haworth, an accepted species name sensu FNA Ed. Comm., 2009.