Flora of the Southeastern United States
2022 Edition

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OPHIOGLOSSACEAE

Sceptridium dissectum (Sprengel) Lyon. Cut-leaf Grape Fern, Dissected Grapefern. Phen: Aug-Oct. Hab: Moist forests, clearings, old fields. Dist: NS and QC west to ON and MI, south to Panhandle FL and e. TX; also in the West Indies.

ID notes: The dissected form of this species is distinctive, with the ultimate segments tending to end in two sharp cusps. The less dissected form is difficult to distinguish from Sceptridium biternatum (southwards) and Sceptridium oneidense (northwards).

Origin/Endemic status: Native

Syn: = K4, Tn, Va; = Botrychium dissectum – Ar, C, ETx1, FNA2, K1, Mo1, NE, NY, Pa, RAB, TxFerns, W, WV; < Botrychium biternatum – Fl1; < Botrychium dissectum – WH3; > Botrychium dissectum – Sf; < Botrychium dissectum var. dissectum – F; > Botrychium dissectum var. dissectum – G, GrPl; > Botrychium dissectum var. obliquum – G, GrPl; > Botrychium dissectum var. tenuifolium – Tx; > Botrychium obliquum – Sf; > Sceptridium dissectum var. dissectum – Il; > Sceptridium dissectum var. obliquum – Il

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image of plant© Alan M. Cressler
image of plant© Alan M. Cressler
image of plant© Erik Danielson
image of plant© Radford, Ahles and Bell
image of plant© Alan M. Cressler