Woodsia obtusa (Sprengel) Torrey ssp. occidentalis Windham. Ozark Woodsia, Ozark Cliff Fern. Phen: Jun-Sep. Hab: Rock outcrops of various sorts, moist talus, terrestrial near rock outcrops. Dist: MO and KS south through AR and OK to e. and c. TX.

Origin/Endemic status: Native

Synonymy: = Ar, ETx1, FNA2, K1, K3, K4, TxFerns; = Physematium obtusum (Spreng.) Hook. ssp. occidentale (Windham) Li Bing Zhang, N.T.Lu, & X.F.Gao – Lu et al (2020); = Woodsiopsis obtusa (Spreng.) Shmakov ssp. occidentalis (Windham) Shmakov – Shmakov (2015); < Woodsia obtusa (Spreng.) Torr. – C, F, G, GrPl, Sf, Tx

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