A perennial sedge with short rootstocks and flattened culms. Culms with four to six overlapping striate bladeless sheaths, and after flowering developing one large blade-bearing leaf without sheath, ligule or midrib, and with undulate mafgins appearing minutely serrulate. Spike one, bractless, androgynous, the flowers monoecious, solitary in the axils of the scales. Perianth none. Staminate flower of three stamens, the filaments filiform. Pistillate flowers of a single pistil, style and three stigmas enveloped by a bladder-like perigynium. Achene triangular. Racheola often developed. [Greek, referring to the undulate-margined leaves.]

A monotypic genus of the southeastern United States.

19 Cymophyllus Mackenzie 1110

1. Cymophyllus Fraseri (Andr.) Mackenzie. Fraser's Sedge

Fig. 1110

Carex Fraseri Andr. Bot. Rep. pi. 639. 1811. Carex Fraseriana Sims, Bot. Mag. pi. 1391. 1811.

Glabrous, culms smooth, slender, reclining, 6'-18' long. Developed leaves 8'-16' long, 1'-2 wide, without midvein, sheath or ligule, perfectly flat, firm, spreading, finely many-nerved, subacute at the apex, their margins usually finely crumpled in drying, one to a culm, developed only after flowering; lower culm-leaves reduced to clasping basal sheaths; spike solitary, bractless, androgynous, 1/2'-1' long, the pistillate portion dense, nearly 1/2 in diameter in fruit; perigynia elliptic-ovoid, milk-white at maturity, diverging, thin and somewhat swollen, faintly nerved, 2 1/2"- 3 long and rather more than 1" in diameter, tipped with a short nearly truncate beak; scales ovate, obtusish, much shorter than the perigynia; stigmas 3.

In rich woods, southwestern Virginia, West Virginia, eastern Tennessee and North Carolina. May-July.