E-Flora BC: Electronic Atlas of the Flora of British Columbia

Botrypus virginianus
rattlesnake fern
Ophioglossaceae (Adder's-tongue family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #11449)

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Distribution of Botrypus virginianus
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Species Information

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Deciduous perennial, (5) 10-40 cm tall.
2-pinnate, 0.5-1.5 times length of trophophores.
Triangular, unstalked, deciduous, thin, herbaceous, divided in 3's or 3- to 4-pinnate, up to 25-35 cm long and about as wide; pinnae to 12 pairs, approximate to overlapping; pinnules lanceolate with saw-toothed margins and pointed tips.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to wet alluvial forests and swamps and river banks in the lowland, steppe and montane zones; frequent throughout BC; circumpolar, N to AK, YT and NT, E to NF and S throughout all of the U.S.; Eurasia.

Source: The Illustrated Flora of British Columbia

Synonyms and Alternate Names

Botrychium virginianum (L.) Sw.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References