Woodsia ilvensis (Linnaeus) R. Brown. Rusty Woodsia, Rusty Cliff Fern. Phen: Jun-Sep. Hab: Cliffs of amphibolite, greenstone, other rocks. Dist: Circumboreal, ranging in North America from NL (Newfoundland) and AK south to VA, nw. NC, OH, n. IL, nw. IA, SK, and BC.
Origin/Endemic status: Native
Synonymy: = C, F, FNA2, G, GrPl, Il, K1, K3, K4, NE, NY, Pa, RAB, S13, Sf, Va, W, WV, Lin et al (2013), Lu et al (2020), Shmakov (2015)
Heliophily: 6
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