PROTECTING WISCONSIN'S BIODIVERSITY

 
 
   
 
Scientific Name Common Name Global Rank State Rank Federal Status WI Status

Mat Muhly (Muhlenbergia richardsonis)

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Photo by Ryan O'Connor

 

Counties with Mapped NHI Occurrences

Mat Muhly (Muhlenbergia richardsonis), a Wisconsin Endangered plant, is found in cold fens, low prairies, brackish wet meadows, marshes, and seeps. Blooming occurs throughout July, fruiting throughout August. The optimal identification period for this species is early-July through August.

Muhlenbergia squarrosa

 
 
 

Mat muhly is a graminoid with culms that are 30-60cm tall, wiry, nodulose-roughened, and erect or decument at the base. It has a narrow panicle that is interrupted, or sometimes rather close and spikelike, 2-10cm long, spikelets are 2-3mm long and in a contracted (vs open) panicle. Glumes are ovate and about half as long as spikelets. Lemmas are lanceolate, acute, mucronate, awnless and glabrous on the back (vs minutely pubescent). Ligule is 2-3mm long, blades are usually involute, 1-5cm long, rarely longer.

Its lemmas, which are awnless and glabrous on the back (vs minutely pubescent), and its spikelets, which are in a contracted (vs. open) panicle are distinguishing characteristics.

Rhizomatous. Blooming occurs throughout July, fruiting throughout August.

Perennial. The optimal identification period for this species is early-July through August.

Associated species include Parnassia glauca, Aster puniceus, Angelica atropurpurea, Potentilla fruticosa, and Scleria verticillata.

Mat muhly prefers wet, gravelly soils and is found in cold fens, low prairies, brackish wet meadows, marshes, and seeps.

Avoid known individual plant locations and conduct operations elsewhere when they are least likely to cause damage. Ideally, this would involve frozen, snow-covered ground. However, in areas of the state where frozen conditions are unreliable, very dry soils late in the growing season might be the best available alternative. Consult with a biologist, if needed.

Avoid broadcast spraying of herbicides and use care with spot spraying.

Prescribed burns and/or brushing may be beneficial, dependent on local site conditions and burn frequency. Rotational burns with annual unburned refugia may be preferred.

Minimize disturbance to hydrology, including soil disturbance from rutting.

Maintain and restore open habitat through selective clearing and brushing.

Species of Greatest Conservation Need (SGCN) are associated with habitats (or natural communities) and places on the landscape. Understanding relationships among SGCN, natural communities and ecological landscapes help us make decisions about issues affecting SGCN and their habitat and how to respond. Download the Wildlife Action Plan association score spreadsheet to explore rare species, natural communities and ecological landscape associations

Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the Wisconsin Wildlife Action Plan because lack of information can threaten our ability to successfully preserve and care for natural resources.