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Home / Learn About Invasive Species

Learn About Invasive Species

Yellow Floating Heart (Nymphoides peltata)
Learn About Invasive Species

Yellow Floating Heart (Nymphoides peltata)

ByMichelle Gobert March 17, 2014October 27, 2022

Yellow floating heart grows in dense mats. It is originally from Eurasia, the Mediterranean, China, India, and Japan.  It is believed to spread from releases from water gardens and the nursery trade.  It reproduces by seeds, stems, or…

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Japanese Knotweed (Polygonum cuspidatum)
Learn About Invasive Species

Japanese Knotweed (Polygonum cuspidatum)

ByMichelle Gobert March 17, 2014October 27, 2022

Japanese knotweed is a semi woody shrub that can reach heights of 8 to 15 feet tall.  The plant resembles bamboo and is often called Japanese bamboo. It originated in Japan and made its way to the United…

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Purple Loosestrife (Lythrum salicaria)
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Purple Loosestrife (Lythrum salicaria)

ByMichelle Gobert March 17, 2014October 27, 2022

Purple Loosestrife is a wetland perennial plant that originally arrived here from Europe and Asia.  It was distributed and sold by plant nurseries because of its attractive purple flowers.  People then planted this species in their yards, gardens…

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Spiny and Fishhook Waterfleas
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Spiny and Fishhook Waterfleas

ByMichelle Gobert March 17, 2014October 27, 2022

This little predatory zooplankton is native to Europe and Asia.  They can grow up to ¾ of an inch in length and eat native Daphnia, which is a food source for many smaller juvenile fish species.  Young fish…

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Zebra Mussels (Dreissena polymorpha)
Learn About Invasive Species

Zebra Mussels (Dreissena polymorpha)

ByMichelle Gobert March 17, 2014October 27, 2022

Zebra mussels are small bivalve mollusks that are fingernail sized and native the Caspian Sea region of Asia.  These mussels are filter feeders and one mussel can filter one liter of water per day. In the water they…

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Chinese + Banded Mystery Snails (Bellamya chinensis and Viviparus georgianus)
Learn About Invasive Species

Chinese + Banded Mystery Snails (Bellamya chinensis and Viviparus georgianus)

ByMichelle Gobert March 17, 2014October 27, 2022

There currently is not much information known about these non native snails.  What is known is they compete with native snails for the same resources and they often die off in large numbers in the summer.  The snails…

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