In the State of Wisconsin this is high priority invasive … Eurasian watermilfoil (myriophyllum spicatum), the more aggressive colonizer of the two, has been found in several Maine water bodies. Myriophyllum spicatum is native to Europe, Asia, and North Africa. Myriophyllum spicatum L. Water milfoil family (Halogoraceae) Origin: Eurasia and Africa Background Introduced accidentally from Eurasia in the 1940s, Eurasian water-milfoil possibly escaped from an aquarium or was brought in on a commercial or private boat. Eurasian Watermilfoil Myriophyllum spicatum is naturalized in Texas and other States and is considered an invasive plant in Texas. Spike Water milfoil (Myriophyllum spicatum) Native floating plants. Negative: On May 26, 2006, RyanUWRF from Cameron, WI wrote: This plant may help improve fishing, but it is very degrading to lakes. Common names: spike watermilfoil Myriophyllum spicatum (Eurasian watermilfoil) is a common submersed aquatic perennial (family Haloragaceae). One of the reasons why this species of milfoil is so invasive is because it can survive in any climate, including under frozen lakes. The hybrid plant tends to be more aggressive than the invasive parent species. ... (Myriophyllum spicatum) - Invading Species - WDNR." Eurasian Water-Milfoil. M. spicatum (spiked watermilfoil) is an invasive submerged aquatic weed characteristic of temperate regions, as far north as the UK and Canada, and as far south as South Africa. Eurasian watermilfoil is a submersed plant that grows in a variety of still and flowing freshwater bodies. Where do they come from and how do they spread? Weed Technology 14(3):511-518. Eurasian Water-milfoil is a seriously problematic aquatic invasive species. Scientific name: Myriophyllum spicatum What Is It? Watermilfoil forms dense mats that shade native aquatic plants, inhibit water flow, and hamper recreation Is It Here Yet? It tends to be few branched on the lower stem and much branched near the water's surface, forming a mat that blocks out the sun, inhibiting the growth of other aquatic plants and degrading or destroying food sources and habitat for native aquatic wildlife. M. spicatum has been found to hybridize with native M. sibiricum (producing M. sibricum X spicatum) with an intermediate number of leaf segments. I find this species very cool and highly interesting. Yes. Eurasian […] All invasive species have a native habitat somewhere, many invasive aquatic plants were first transported as ornamental aquarium plants. Summary of Invasiveness Top of page. Potential environmental impacts and economic damages of Eurasian watermilfoil (Myriophyllum spicatum) in western Nevada and northeastern California. Wisconsin Department of Natural Resources. Yellow water lily (Nuphar lutea) White water lily (Nymphaea alba) Broad leaved pondweed (Potamogeton natans) Importance of controlling invasive aquatic species. It can tolerate a range of salinity, acidity, and temperature. Invasive Species - (Myriophyllum spicatum) Restricted in Michigan Eurasian Watermilfoil is an aquatic plant with stems that are whitish-pick to reddish-brown, leaves that are greyish-green with finely divided pairs of leaflets that are 1/2 - 2 inches long that give the plant a feathery appearance. … Myriophyllum verticillatum: lower bracts of inflorescence 2 or more times as long as the flowers or fruits, prominently toothed to lobed, upper bracts of inflorescence toothed to lobed (vs. M. spicatum, with lower bracts of inflorescence less than 2 times as long as the flowers or fruits, upper bracts of inflorescence entire to minutely toothed). 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