59. Carex dimorpholepis Steud., Syn. Pl. Glumac. 2: 214. 1855; Boott, Ill. Gen. Carex 4: tab. 758. 1867; Kük., in Engler, Pflanzenr. IV,20, 38: fig. 56, D-F 1909; Akiyama, Carices of the Far East. Asia: Pl. 58. 1955; Kukkonen in Rech.f., l.c. 282.
C. cernua Boott, l.c. 4: 171. 1867, non J.F. Gmelin, Syst. Nat. 2(1): 146. 1791, nec Philippi, Linnaea 29: 83. 1857-58.
Perennial, 30-90 cm. Rhizome with (?) stolons. Stem straight or base ascending, sharply trigonous, sides concave, scabrous or smooth. Leaves equalling or overtopping stem; sheaths 30-60 mm, brown, margin of scarious side concave; ligule 0.5-1 mm, brownish, arch much higher than wide; blades 3-6 mm wide, flat, margins revolute, scabrous towards apex. Inflorescence of 1 gynecandrous and 4-10 female spikes below. Bracts much overtopping inflorescence, sheath-less. Spikes 25-60 mm, cylindrical, overlapping, drooping, peduncles to 50 mm, lowest occasionally rebranching; male glumes c. 4.5 x 1.4 mm, obovate, truncate, with arista to 1.7 mm; female glumes c. 4.5 x 1.5 mm, truncate, with barbed arista to 2.5 mm, scarious; utricles c. 3.1 x 1.4 mm, ellipsoid or widely fusiform, bi-convex, with c. 0.4 mm stipe, yellowish-brown, densely papillose, beak c. 0.2 mm, cylindrical, truncate.
Fl. Per.: May.
Type:”Ex Hrbo Musei Leidens, Japonia”.
On marshy ground, along rivers; Distribution: From Pakistan, Kashmir to Vietnam, northwards to Korea and Japan.