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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

Links to other floras: = Ophioglossum engelmannii - FNA2

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACU
  • Eastern Mountains and Piedmont: FACU
  • Great Plains: FACU
  • Midwest: FACU

Heliophily ⓘ: 8

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image of plant© Alan Cressler: Ophioglossum engelmannii, Nettle Glade, Ketona Dolomite, Kathy Stiles Freeland Bibb County Glades Preserve, The Nature Conservancy, Bibb County, Alabama 3 by Alan Cressler source | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Joey Shaw source | Original Image ⭷
image of plant© Aidan Campos source | Original Image ⭷

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