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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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Proserpinaca intermedia

Proserpinaca intermedia Mack.

Intermediate Mermaidweed

Haloragaceae (Water Milfoil Family)


USDA Symbol: PRIN2

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


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Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Nut
Size Notes: Up to about 18 inches tall.
Fruit: Nutlet.

Bloom Information

Bloom Color: White
Bloom Time: May , Jun , Jul , Aug , Sep , Oct


USA: AL , FL , GA , LA , MA , MI , MS , NC , NJ , PA , RI , SC , TN , VA
Canada: NS

Growing Conditions

Aquatic: yes

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 57 - Atlas of Florida Plants (2020) Institute for Systematic Botany
Webref 38 - Flora of North America (2019) 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 Proserpinaca intermedia in USDA Plants
FNA: Find Proserpinaca intermedia in the Flora of North America (if available)
Google: Search Google for Proserpinaca intermedia


Record Modified: 2022-12-07
Research By: TWC Staff

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