Genus VII Scirpus Linnaeus, p. 151

Genus VII Scirpus Linnaeus.
(Latin Scirpus, the Bull rush)

Spikes many flowered, terete, mostly clustered with one or more involucral leaves; scales imbricated on all sides; perianth of 3 to 6 rigid rough persistant, bristles or 6 slender smooth wavy or curly hairs; stamens 3; style 2 [to] or 3-cleft, not bulbous at the base, wholly deciduous; achenium lenticular or triangular sometimes mucronate with the slender base of the style. Culms mostly triangular, sheathed at the base, the sheaths often bearing leaves.