Circumpolar Reed Grass

Calamagrostis deschampsioides Trin. Ic. pi. 354. 1836
Deyeuxia deschampsioides Scribn. Bull. Torrey Club 10: 8. 1883. (Based on Calamagrostis deschampsioides Trin.)
Calamagrostis deschampsioides var. macrantha Piper; Scribn. & Merr. Contr. U. S. Nat. Herb. 13: 59. 1910. (Type from Kodiak Island, Alaska.)
Culms erect from an ascending base, loosely tufted or solitary, glabrous, 15-40 cm. tall, with slender creeping rhizomes; sheaths glabrous; ligule 2-3 mm. long; blades flat, rather lax, not numerous at base, smooth except the scaberulous margins, 3-7 cm. long, 1-4 mm. wide; panicle pyramidal, open, 4-8 cm. long, the axis glabrous, the branches verticillate, the lower spreading, capillary, glabrous, naked below, somewhat flexuous, few-flowered; glumes acuminate, glabrous, purplish, mostly 4-6 mm. long; lemma about as long as the glumes, the awn attached about the middle, usually exceeding the lemma 1-2 mm., the callus-hairs about half as long as the lemma; rachilla slender, rather sparsely pilose, 1 mm. long.
Type locality: Kamchatka.
Distribution: Bogs and marshy places, Alaska, near the coast, from Prince William Sound to Port Clarence and the Bering Sea islands; also Kamchatka.