Densely tufted, 2–5 dm, the culms slender, smooth; sheaths distally pilose, the lower often containing cleistogamous spikelets; blades flat or involute, 5–10 cm× 1–3 mm, glabrous or sparsely pilose; infl contracted, 2–6 cm, the branches appressed, mostly shorter than their single terminal spikelet, or the lowest bearing 2 spikelets; glumes 10–16 × 3–4 mm, suffused with purple; lemmas 6.5–9 mm, of which a third is the setaceous teeth, glabrous on the back, sparsely pilose on the margins, chiefly below the middle; awn 6–10 mm; often apomictic, with abortive anthers; 2n=18, 36, ca 96. Meadows, bogs, and barrens; Lab. and Nf. to Alas., s. to Que., n. Mich., and Ariz.
Home