Carex bigelowii Schwein.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Stems erect, 1–4 dm, solitary or few together from stout rhizomes, surrounded by the dried-up lf-bases of the previous year, phyllopodic; main lvs 2–6 mm wide; terminal spike staminate, 0.5–2 cm, usually long-pedunculate; pistillate spikes 2 or 3, cylindric, 0.5–3.5 cm, erect, the lower short-peduncled, the upper sessile or nearly so; bracts sheathless, the lowest usually shorter than the infl, the upper much smaller; pistillate scales elliptic to obovate, obtuse, about as long and wide as the perigynia and concealing them, dark brown throughout or with a very narrow pale midvein; perigynia pale green, usually strongly suffused with purple or even wholly purple, ovate to obovate, biconvex, 2.1–3.8 mm, rounded or obtuse at the summit, minutely apiculate, 2-ribbed, otherwise nerveless; achene lenticular, nearly filling the perigynium; 2n 76–80. Rocky ledges and mt. meadows; circumboreal, s. in our range to the higher mts. of N. Engl. and N.Y. (C. concolor, perhaps misapplied)