Scirpus Atrovirens Muhlenberg, p. 160

[32] 33 Scirpus atrovirens Muhlenberg

Culms rigid, obtusely triangular, very leafy; spikes ovoid, clustered 15 to 20 together in dense heads; bristles 6, scarcely exceeding the obovoid, compressed, triangular achenium; scales awnless; style 3 cleft. Culms 2 to 6 feet high, triangular, leafy. Flowers in July.

Wet meadows, about springs, and swamps. Found throughout Wisconsin, also in Illinois, Indiana, Ohio, and Michigan.

Prof. Emmons has given the results of the examination of this plant cut near Albany in June, when just out of flower, from which it appears that it consists of
watwe 40.88 percent
Dry matter 59.12
The dried hay consisted of
Organic matter 96.02 percent
Ash 3.98

This Scirpus therefore, like the Eleocharis temus contains a much smaller quantity of water, and its hay yields about two & a half percent less ash than timothy (Phleum pratense).