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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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Limnobium spongia

Limnobium spongia (Bosc) Rich. ex Steud.

American Frogbit, American Spongeplant, Frogbite

Hydrocharitaceae (Tape-grass family)

Synonym(s): Hydrocharis cordifolia, Hydrocharis spongia

USDA Symbol: LISP2

USDA Native Status: L48 (N)


From the Image Gallery

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Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Capsule
Size Notes: Stems up to about 20 inches long, floating or suspended in water.
Fruit: Berrylike.

Bloom Information

Bloom Color: White , Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct , Nov


USA: AL , AR , CT , DE , FL , GA , IL , IN , KY , LA , MD , MO , MS , NC , NJ , NY , OK , SC , TN , TX , VA
Native Habitat: Floating on slow-moving water of streams, bayous and lakes or stranded along shore.

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.

Wildflower Center Seed Bank

LBJWC-1143 Collected 2007-11-16 in Liberty County by Lady Bird Johnson Wildflower Center

1 collection(s) available in the Wildflower Center Seed Bank

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


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

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