Also called parrot's-feather.
Part of
♒︎ watermilfoil family Haloragaceae.
Native to the Amazon River in South America.
🗺 Map by county (🇺🇸 USA-48)
(color key).
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Invasive > 🌐︎ global
Invasive > 🌐︎ various
Invasive > 🇨🇦 Canada, 🇺🇸 USA
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Invasive > 🇺🇸 USA
Invasive > Michigan
prohibited in Michigan, incl. seeds, fragments and derivatives. 
treatment details (Michigan) (pages 5, 20, 58, 59, 75, 132, 154, 224 and 257)
Uses by native peoples
(Ethnobotany database)
On No-Planting List by Seneca Nation of Indians SNI. (page 63)