INVASIVE GRASS-LIKE PLANTS/GRASSES

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Image from Wikimedia Commons

Japanese Stiltgrass

(Microstegium vimineum)

Japanese stilt grass is an annual grass that often has a silver stripe down the middle of each leaf. It is not common in the state. For more information, see the WDNR and this UW-Extension Factsheet. CWIP also created a quick ID guide for this species. 

Phragmites australis - Paul Skawinski.JP

Image from Paul Skawinski

Phragmites

(Phragmites australis)

Phragmites is a tall grass that invades wet areas. It develops a hairy seedheads late in the season. There is a native subspecies of phragmites. For information about differentiating between native and invasive phragmites, visit the Great Lakes Phragmites Collaborative. For more information about invasive phragmites, visit the WDNR

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Image from Wikimedia Commons

Johnsongrass

(Sorghum halepense)

Johnsongrass is a tall perennial grass that invades a variety of habitats. It is not common in the state. For more information, visit the WDNR and Invasive.org.

Phalaris arundinacea2 - Paul Skawinski.J

Image from Paul Skawinski

Reed Canary Grass

(Phalaris arundinacea)

Reed canary grass is a perennial grass that invades wet areas. It is widespread in Wisconsin. For more information, visit the WDNR and Invasive.org.

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Image from Wikimedia Commons

Reed Manna Grass/Tall Manna Grass

(Glyceria maxima)

Reed manna grass is a tall perennial grass that invades wet areas. It is not common in the state. For more information, visit the WDNR and Wisconsin Wetlands Association.