Plant Info
Pick an image for a larger view. See the glossary for icon descriptions. Show Detailed InformationFlower: Leaves and stem: Fruit: Notes:This is perhaps the single most destructive, invasive wetland species in Minnesota to date. One of its field identifying characteristics is that it is so everywhere! The stems and leaves eventually collapse into a sprawling mat that is difficult to traverse by humans and wildlife alike and is essentially useless for nesting habitat. At least one DNR ecologist notes that any area taken over by it becomes a biological desert, with little diversity of insects, birds or other wildlife. Its dense stands, voracious root systems and persistent seed bank make it a resource manager's nightmare. Though it has limited commercial seed production in Minnesota it is widely distributed throughout Minnesota, the US and the world. A form with striped leaves, f. varietata a.k.a. Ribbon Grass, is cultivated as an ornamental and is supposedly sterile but has also been known to escape to the wild and spread vegetatively. Having said all that, a recent study by the University of Minnesota has made an unexpected discovery: most, if not all, Reed Canary Grass populations along the major rivers in the state are native. This was after extensive sampling along 6 major rivers and genetically testing them against populations from the Czech Republic, which is near the same latitude as Minnesota and has a similar river system. The two are genetically distinct, and the Minnesota populations are genetically similar to what has long been considered an extensive native population in Roseau County. Surprise, surprise. The next wave of testing is expected to be along major highway corridors. We'll see how that turns out. Of note is there are no morphological differences between native and European plants so genetic testing is the only way to distinguish them. And just because it's native doesn't mean it isn't also invasive, at least in areas where it's been introduced. If it forms a monoculture where there was once diversity, consider it grounds for extermination. More photosPhotos courtesy Peter M. Dziuk and K. Chayka, taken at various locations in MN--it's everywhere! Phalaris arundinacea form variegata By Frank Vincentz (Own work), via Wikimedia Commons, used under CC BY-SA 3.0 CommentsHave you seen this plant in Minnesota, or have any other comments about it? Where is reed canary grass native?Reed canary grass (Phalaris arundinacea) is native to Europe, Asia, and North America. The European variety is particularly aggressive and it is likely that the invasive varieties are cultivars that were crossbred for fast growth.
Where is reed canary grass invasive?Ecological Impacts: It has become naturalized in much of the northern United States and southern Canada. Over time, it can form large colonies that spread throughout a wetland or floodplain. It is now invading forested sites and limiting tree regeneration. Few plants can grow in areas dominated by reed canary grass.
Is canary reed grass invasive?Reed canary grass is considered invasive in many areas and it is thought that the more aggressive Eurasian ecotypes have outgrown and possibly replaced, or hybridized with the native ecotypes.
Is Reed canary grass native to Wisconsin?Reed canary grass | (Phalaris arundinacea) | Wisconsin DNR.
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