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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Lemna perpusilla

Lemna perpusilla Torr.

Minute Duckweed

Lemnaceae (Duckweed family)

Synonym(s): Lemna perpusilla var. trinervis


USDA Native Status: L48 (N), PR (N), VI (N), CAN (N)


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Small fronds, less than 1/4 inch long, floating on the surface of the water.
Fruit: Utricle.

Bloom Information

Bloom Color: Green
Bloom Time: May , Jun , Jul , Aug , Sep , Oct , Nov
Bloom Notes: Flowers frequently. Flowers inconspicuous.


USA: AL , AR , AZ , CT , DC , DE , GA , IA , IL , IN , KS , KY , LA , MA , MD , ME , MN , MO , MS , NC , ND , NE , NJ , NM , NY , OH , OK , PA , RI , SC , SD , TN , TX , VA , VT , WI , WV
Canada: QC
Native Habitat: Floating in quiet waters with moderate to high levels of nutrients.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Lemna perpusilla in USDA Plants
FNA: Find Lemna perpusilla in the Flora of North America (if available)
Google: Search Google for Lemna perpusilla


Record Modified: 2020-11-02
Research By: CBR

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