Scirpus Torreyii Olney, p. 156

29. Scirpus Torreyii Olney.

Syn. S. mucronatus Ph. & Tor. (not of Linn.)

Culm 3-angled, the sides concave, & nearly equal, leafy at the base; spikes 1 to 4 sessile, ovate-oblong; acute, distinct, much shorter than the slender erect involucral leaf; scales ovate, smooth, entire, mucronate; leaves 2 or 3 more than hald the length of the culm; styles 3 cleft; bristles longer than the achenium; anthers without appendages; achenium unequally triangular, very smooth, long-pointed. Culms about two feet high. Flowers in July.

Margin of ponds. Michigan. Extends eastward to N. England.