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Yellow Iris

Yellow Iris

Yellow Iris Iris pseudacorus  Home 9 Invaders 9 Category: Aquatic Plants Background Yellow iris, or yellow flag iris, is a perennial aquatic plant native to Europe, Western Asia, and North Africa. It was first introduced to North America in the 19th...
Yellow Floating-heart

Yellow Floating-heart

Yellow Floating-heart Nymphoides peltata  Home 9 Invaders 9 Category: Aquatic Plants Background Yellow floating-heart is a perennial aquatic plant native to Asia and Europe. Introduced to North America in the late 19th century, it has been used as an...
Water Soldier

Water Soldier

Water Soldier Stratiotes aloides  Home 9 Invaders 9 Category: Aquatic Plants What is Ontario Doing? To prevent the further spread and introduction of this unwanted invader in the province, Ontario has regulated water soldier as a prohibited invasive...
Water Lettuce

Water Lettuce

Water Lettuce Pistia stratiotes  Home 9 Invaders 9 Category: Aquatic Plants Background Water lettuce is a free-floating aquatic plant whose origins are uncertain. An explorer in Florida, during the 18th century was the first person to record its...
Water Hyacinth

Water Hyacinth

Water Hyacinth Eichhornia crassipes  Home 9 Invaders 9 Category: Aquatic Plants Background Water hyacinth is a free-floating, aquatic plant in the pickerel-weed family (Pontederiaceae spp.) imported into North America in 1884 for an exposition in New...
Starry Stonewort

Starry Stonewort

Starry Stonewort Nitellopsis obtusa  Home 9 Invaders 9 Category: Aquatic Plants Background Starry stonewort is an invasive macroalgae native to northern Eurasia. It was introduced in North America through the St.Lawrence River in 1974 and was first...