Shorthair Reedgrass

Calamagrostis breweri Thurber, in S. Wats. Bot. Calif 2:280. 1880.
Deyeuxia Breweri Vasey, Grasses U. S. 28. 1883. (Based on Calamagrostis Breweri Thurber.) Calamagrostis Lemmoni Kearney, Bull. U. S. Dep. Agr. Agrost. 11: 16. 1898. (Type from California.)
Culms densely tufted, slender or almost filiform, erect, glabrous, 15-30 cm. tall, one node below the middle, another near the base; sheaths glabrous or the lower faintly scabrous; ligule of culm-leaf 3-5 mm. long, of basal leaves shorter; blades at base numerous, erect, usually involute-filiform, often somewhat flexuous, more or less scabrous, 5-10 cm. long, the culmblade shorter; panicle ovate, purple, open, 3-8 cm. long, the axis glabrous, the lower branches capillary, spreading, naked below, glabrous, few-flowered, 1-2 cm. long; glumes smooth, acute, 3-4 mm. long; lemma cuspidate-toothed, nearly as long as the glumes, the awn from near the base, geniculate, exserted, twisted below, about 2 mm. long above the bend, the callus-hairs short, scant; rachilla long-pilose, about half as long as the lemma.
Type locality: Carson Pass, California {Brewer 2128).
Distribution : Mountain meadows of the high Sierra Nevada, California.

Perennials, Aquatic, leaves emergent, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, St ems with inflorescence 1-2 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly basal, below middle of stem, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades very narrow or filiform, less than 2 mm wide, Leaf blades 2-10 mm wide, Leaf blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence branches more than 10 to numerous, Lower panicle branches whorled, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret , Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel hairy, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes 1 nerved, Glumes 3 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma similar in texture to glumes, Lemma 5-7 nerved, Lemma glabrous, Lemma apex dentate, 3-5 fid, Lemma distinctly awned, more than 2-3 mm, Lemma with 1 awn, Lemma awn less than 1 cm long, Lemma awn subapical or dorsal, Lemma awn twisted, spirally coiled at base, like a corkscrew, Lemma awn once geniculate, bent once, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea m embranous, hyaline, Palea shorter than lemma, Palea about equal to lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.

Calamagrostis breweri is a species of grass known by the common name shorthair reedgrass.