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Western Wetland Flora

Field Office Guide to Plant Species

Triangle Moonwort
Botrychium lanceolatum (S.G. Gmel.) Rupr.

JPG -- Species Photo JPG -- Distribution Map

Family: Adder's-tongue (Ophioglossaceae)
Spores: May-June
Field Marks: This Botrychium has smooth buds, and the sterile triangular leaf bends downward before it is fully mature.
Habitat: Moist grassy or rocky areas.
Habit: Perennial fern with an erect rhizome.
Stems: Upright, rather stout, up to 1 foot tall, smooth; buds not hairy.
Leaves: Sterile blade triangular, pinnately divided, sessile, the segments linear-lanceolate to oblong, pointed at the tip, smooth, bent downward until fully mature.
Sori: Spherical, borne in a terminal panicle at the top of the steri
Notes: The young succulent stems of this fern may be eaten by mammals.

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