Also called kariba weed.

An ♒︎ aquatic fern in family Salviniaceae.

Native to southeastern 🇧🇷 Brazil.   🌎︎ Map by county (🇺🇸 USA-48) (colors).   Invasive > 🌐︎ global Invasive > 🌐︎ various Invasive > 🇨🇦 Canada, 🇺🇸 USA Invasive > report it! Invasive > 🇺🇸 USA Invasive > Michigan prohibited in Michigan, incl. seeds, fragments and derivatives  Adobe Acrobat Reader file

Uses by native peoples
(Ethnobotany database)

Learn more about giant salvinia Salvinia molesta

Biological Control in Eastern USA  Adobe Acrobat Reader file (page 25)

🔍︎ 🔍︎ images Discover Life Encyclopedia of Life USDA PLANTS db USGS Wikipedia