Alisma lanceolatum
PlantsFamily: Alismataceae · Genus: Alisma

Gordon Leppig & Andrea J. Pickart · public_domain
About
Alisma lanceolatum is a species of aquatic plant in the water plantain family known by the common names lanceleaf water plantain and narrow-leaved water plantain. It is widespread across Europe, North Africa and temperate Asia. It is naturalized in Australia, New Zealand, Oregon, California and British Columbia. It is considered a noxious weed in some places.
Summary from Wikipedia
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Growing details and traits for Alisma lanceolatum in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.