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Yellow Iris

Yellow Iris

Yellow Iris Iris pseudacorus  Home 9 2021 9 February 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 century as an...
Yellow Floating-heart

Yellow Floating-heart

Yellow Floating-heart Nymphoides peltata  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 yellow floating heart as...
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...
Parrot Feather

Parrot Feather

Parrot Feather Myriophyllum aquaticum  Home 9 Invaders 9 Category: Aquatic Plants ( Page 2 ) What is Ontario Doing? To prevent this unwanted invader from coming into the province, Ontario has regulated parrot feather as prohibited under the Invasive...
Hydrilla

Hydrilla

Hydrilla Hydrilla verticillata  Home 9 Invaders 9 Category: Aquatic Plants ( Page 2 ) What is Ontario Doing? To prevent this unwanted invader from coming into the province, Ontario has regulated hydrilla as prohibited under the Invasive Species Act,...
Flowering Rush

Flowering Rush

Flowering Rush Butomus umbellatus  Home 9 Invaders 9 Category: Aquatic Plants ( Page 2 ) Background Flowering rush is a perennial aquatic plant native to Eurasia and Africa that grows in lakes, riparian zones, wetlands, and marshes. It was first...
Fanwort

Fanwort

Fanwort Cabomba caroliniana  Home 9 Invaders 9 Category: Aquatic Plants ( Page 2 ) What is Ontario Doing? To prevent the further spread and introduction of this unwanted invader in the province, Ontario has regulated fanwort as restricted under...
European Water Chestnut

European Water Chestnut

European Water Chestnut Trapa natans  Home 9 Invaders 9 Category: Aquatic Plants ( Page 2 ) What is Ontario Doing? To prevent the further spread and introduction of this unwanted invader in the province, Ontario has regulated European water chestnut...
European Frog-bit

European Frog-bit

European Frog-bit Hydrocharis morsus-ranae  Home 9 Category: Invaders ( Page 12 ) What is Ontario Doing? To prevent the further spread and introduction of this unwanted invader in the province, Ontario has regulated European frog-bit as restricted under...