Vascular Plants - Ophioglossaceae - Ophioglossum:
Ophioglossum pusillum
northern adder's-tongue 
Habit: herb
Duration: perennial
Origin: Native
Conservation Status: Threatened

Distribution: Alaska to California, and Montana east to Maine and Virginia
Habitat: Meadows and woods at moderate elevations in the mountains
Accepted Name:
Ophioglossum pusillum Raf.
Synonyms:
Ophioglossum vulgatum L.

Treated in Flora of the PNW as:
Ophioglossum vulgatum
Additional Resources:

PNW Herbaria Specimens: View list of all Ophioglossum pusillum specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Ophioglossum pusillum specimens in the WTU Herbarium database.

Washington Flora Checklist: Ophioglossum pusillum treatment.

E-Flora BC: Ophioglossum pusillum atlas page.

CalPhotos: Ophioglossum pusillum images.

USDA Plants Database: Ophioglossum pusillum.
Additional photographs of Ophioglossum pusillum:
(click on a thumbnail to view larger photo)

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Washington Natural Heritage Program

Ben Legler, 2012

Ben Legler, 2012

Ben Legler, 2012
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Washington Native Plant Society
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