Taxon  Report   6825 
Potamogeton zosteriformis  Fern.
Eel grass pondweed,  Flatstem pondweed
Potamogeton zosteriformis, a monocot, is an annual herb (aquatic) that is native to California and is also found elsewhere in North America and beyond.
It is included in the CNPS Inventory of Rare and Endangered Plants on list 2B.2 (rare, threatened, or endangered in CA; common elsewhere).   7th Edition  /  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
Freshwater Wetlands, wetland-riparian
Habitat: freshwater-marsh [CNPS Inventory]
Wetlands:Occurs almost always under natural conditions in wetlands [U.S. Fish & Wildlife Service.]
Distribution by County 

Add an Observation of  Potamogeton zosteriformis

Name Status:
Accepted by TJM2 + CNPS + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Potamogeton compressus
PLANTS: Potamogeton zosterifolius ssp. zosteriformis
More information about  Potamogeton zosteriformis
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 24, 2016).

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