Bolander's Reedgrass

Calamagrostis bolanderi Thurber, in S. Wats. Bot. Calif. 2:
280. 1880.
Deyeuxia Bolanderi Vasey, Grasses U. S. 28. 1883. (Based on Calamagrostis Bolanderi Thurb.)
Culms erect, glabrous or slightly rough below the nodes, 1-1.5 m. tall, with slender rhizomes; sheaths slightly scabrous; ligule scabrous, 4-5 mm. long; blades flat, those of the culm scattered, nearly smooth, 5-20 cm. long, 5-9 mm. wide; panicle open, pyramidal, 10-20 cm. long, the axis glabrous or nearly so below, the branches verticillate, spreading, scabrous, naked below, the longer 5-10 cm. long, the verticils mostly 2-5 cm. apart; glumes 3-4 mm. long, purple, scabrous, acute; lemma very scabrous, about as long as the glumes, the awn from near the base, geniculate, exserted, about 2 mm. long above the bend, the callus-hairs short; rachilla pilose, 1-2 mm. long. Type locality: Mendocino County, California (Bolander 6471, in part).
Distribution: Bogs and moist ground, prairies or open woods, near the coast, Mendocino and Humboldt counties, California.

Perennials, Aquatic, leaves emergent, Terrestrial, not aquatic, Rhizomes present, Rhizome elongate, creeping, stems distant, 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, Stems with inflorescence 1-2 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, 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 2-10 mm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, 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 acute or acuminate, Lemma mucronate, very shortly be aked or awned, less than 1-2 mm, 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 membranous, 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 bolanderi is a species of grass known by the common name Bolander's reedgrass. It is endemic to northern California, where it grows in moist coastal habitat such as temperate coniferous forest, wet meadows and bogs, and coastal scrub.