Calflora
Taxon  Report   11043    
Potamogeton epihydrus  Raf.
Ribbonleaf pondweed
Potamogeton epihydrus
© 2010 Louis-M. Landry
Photos from
CalPhotos / Calflora
Potamogeton epihydrus, a monocot, is a perennial herb (rhizomatous) that is native to California, is also found elsewhere in North America and beyond, (questionable).
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
Potamogeton epihydrus
© 2010 Louis-M. Landry
Communities: Freshwater Wetlands, wetland-riparian

Wetlands: Occurs in wetlands

Habitat: freshwater-marsh

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTS: Potamogeton epihydrus var. nuttallii
PLANTS: Potamogeton epihydrus var. ramosus
ICPN + CNPS + PLANTS: Potamogeton epihydrus ssp. nuttallii
More information about  Potamogeton epihydrus
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (POEP2)

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 17, 2018).

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