PROTECTING WISCONSIN'S BIODIVERSITY

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

Neat Spike-rush (Eleocharis nitida)

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Photo by Daniel Spuhler

 

Counties with Mapped NHI Occurrences

Neat Spike-rush (Eleocharis nitida), a Wisconsin Endangered plant, is found on wet exposed clay in ditches and openings in alder thickets and marshes, only near Superior. Blooming occurs throughout June, fruiting late-June through early-September. The optimal identification period for this species is late-June through August.

Eleocharis tenuis

 
 
 

Neat spike-rush has ovoid, acutish, spikelets, 1.5-4.5mm long and 1.5-3mm wide, that are loosely flowered. Its anthers are 0.5-0.7mm long, bristles are absent. Its achenes are pale yellow, becoming orange, sharply 3-angled, very minutely wrinkled, 0.7-0.8mm long, and persistent. Tubercles are a depressed saucer with centralapiculation. Its culms are tufted or scattered, delicately capillary, 4-angled, and 2-10cm tall. Basal sheaths are close, greenish or yellowish, and scarcely darkened at summit.

It can be distinguished from other Eleocharis species by the combination of spikelets that are wider than the stem and achenes, which are 3-angled and dark yellow or orange.

Rhizomatous. Blooming occurs throughout June, fruiting late-June through early-September.

Perennial. The optimal identification period for this species is late-June through late-August.

Associated species include Alnus rugosa, Salix petiolaris, Cornus stolonifera, Petasites sagittatus, Calamagrostis canadensis, Sparganium glomeratum, and Juncus species.

Neat spike-rush is found on wet exposed clay in ditches and openings in alder thickets and marshes, only near Superior.

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.

Survey for and control invasive plants prior to conducting timber operations, as these can be spread by vehicles and often respond vigorously to increased light. See forestry BMPs for invasive species.

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.