Ophioglossum engelmannii Prantl. Engelmann’s Adder’s-tongue, Limestone Adder’s-tongue. Phen: Dec-Jun. Hab: Dry barrens and glades over calcareous rocks, very rarely on granite. Dist: W. VA, IN, IL, KS, and AZ south to Panhandle FL and TX; Mexico and Central America.
Origin/Endemic status: Native
Other Comments: Ascribed to NC by Wagner & Wagner in FNA (1993b), the documentation unknown.
Synonymy ⓘ: = Ar, C, ETx1, F, Fl1, FNA2, G, GrPl, Il, K1, K3, K4, Meso1, Mo1, Pa, S13, Sf, Tn, Tx, TxFerns, Va, W, WH3; = Whittieria engelmannii (Prantl) Li Bing Zhang & Liang Zhang – Wan, Zhang, & Zhang (2022), Zhang & Zhang (2022), nom. illeg., basionym not cited
Wetland Indicator Status:
Heliophily ⓘ: 8
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