Native & Naturalized Plants of the Carolinas & Georgia


1097

Floating aquatic (the roots floating); Forb

Original distribution unclear
Documented growing wild in GA? NC SC

Rare, introduced from further south

Look for it in stagnant or slow-moving waters of rivers, sometimes cultivated in ponds, per Weakley's Flora

map
To see a detailed map, click here


INVASIVE

This plant is causing problems in natural areas outside its native range, according to authorities such as:

Alabama Invasive Plant Council, 2012
SC Department of Natural Resources Aquatic Nuisance Species List, 2003
SC List of Regulated Pest Plant Species, 2017
US Fish & Wildlife Service

 

Aquatic

LEAVES:
Leaves in rosettes connected by underwater stems

FLOWER:
Inflorescence a spadix

FRUIT:

 

TO LEARN MORE about this plant, look it up in a good book!



Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Alismatales

WEAKLEY'S FLORA (11/30/12):
Pistia stratiotes   FAMILY Araceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Pistia stratiotes   FAMILY Araceae

 

COMMON NAME:
Water Lettuce


Click or hover over the thumbnails to see larger pictures.

image of Pistia stratiotes

Keith Bradley    kab_p_stratiotes_70942

July    Collier County    FL

Fakahatchee Strand Preserve State Park

A whorl of male flowers tops a short stalk with a single female at its base, per Invasive Plants, Guide to Identification, Impacts and Control.

image of Pistia stratiotes

JK Marlow    jkm160914_085

September        

SE-EPPC Aquatic Plant ID Workshop

Leaves light green, thick, softly hairy, with distinct parallel ridges, per Invasive Plants, Guide to Identification, Impacts and Control.


click here to see other plants that look similar to this COMPARE aquatic plants

image of Pistia stratiotes

JK Marlow    jkm160914_085b

September        

SE-EPPC Aquatic Plant ID Workshop

image of Pistia stratiotes

JK Marlow    jkm160914_087

September        

SE-EPPC Aquatic Plant ID Workshop

image of Pistia stratiotes

Graves Lovell, Alabama Dept. of Conservation & Natural Resources, Bugwood.org    bug_5400750

Month Unknown        

Looks like an open head of lettuce floating on the water, per Invasive Plants, Guide to Identification, Impacts and Control.

image of Pistia stratiotes

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org    bug_5447009

Month Unknown