States
North CarolinaTennesseeGeorgiaSouth CarolinaKentuckyAlabamaArkansasFloridaLouisianaMississippiVirginiaWest Virginia
Menu

Brazilian Waterweed

Egeria densa

In the Carolinas and Georgia, found in ponds and stagnant water of streams or rivers. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

-55
Severe harm

Not native to Louisiana. How scores work Is it native here?

Profile 53%

Light
Partial shade, Full sun
Soil moisture
Standing water

Do not plant. Listed invasive in Louisiana.

At a glance

Bloom
May to November

Not yet recorded · Height · Spread · Life cycle · Leaves

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 25 Louisiana parishes.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 2

Streams, rivers and their banks

Flowing water and its banks, bars and rocky shoals.

Ponds, lakes and their shores

Still water and its edges: ponds, lakes, millponds and reservoirs.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

—CaterpillarsGenus host records with ranges including LA
—BeesSoutheastern regional records
—Specialist beesPollen specialists
—BirdsRecorded genus food-resource interactions; not a state feeding claim
Growing and identification

Plant details

Family
Hydrocharitaceae

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Brazilian Elodea; Brazilian Water Weed; Elodea densa

Conservation status

Louisiana rankSNA
Global rankG5
LA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

Native alternatives

Find natives for your garden

Sources