Calflora
Taxon  Report   5920    
Ophioglossum pusillum  Raf.
Northern adder's tongue,  Northern adderstongue
Ophioglossum pusillum
© 2009 Dr. Amadej Trnkoczy
Photos from
CalPhotos / Calflora
Ophioglossum pusillum, a pteridophyte, is a fern (rhizomatous) that is native to California, is also found elsewhere in North America and beyond.
also called Ophioglossum vulgatum
CNPS Rare Plant Rank: 2B.2 (rare, threatened, or endangered in CA; common elsewhere).   8th Edition

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Ophioglossum pusillum
© 2004 Dean Wm. Taylor
Communities: Valley Grassland, Freshwater Wetlands, wetland-riparian

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: freshwater-marsh, edges

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTS: Ophioglossum vulgatum var. alaskanum
PLANTS: Ophioglossum vulgatum var. pseudopodum
CNPS + PLANTS: Ophioglossum vulgatum
More information about  Ophioglossum pusillum
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (OPPU3)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available: https://www.calflora.org/   (Accessed: Nov 19, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.