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Chinese Plant Names | Family List | Cyperaceae | Carex

Carex stipitinux C. B. Clarke


Description from Flora of China

Carex brunnea Thunberg var. stipitinux (C. B. Clarke ex Franchet) Kükenthal.

Rhizome short, ligneous, without stolons. Culms tufted, slightly slender, 60-100 cm tall, triquetrous, smooth, clothed with dark brown and bladeless sheaths at base, most up to 15 cm. Leaves shorter than or nearly equaling culm, blades 4-5 mm wide, ± stiff, scabrous on midrib of abaxial surface and margins, long sheathed; sheaths most up to 11 cm, membranous part of sheaths eventually disintegrating into reticulate fibers. Involucral bracts sheathed, lowest involucral bract blade leaflike, upper blades needle-shaped or setaceous, shorter than inflorescence, scabrous near apex. Spike numerous, 1-3 in an involucral bract sheath, usually 2 or 3 racemes composed of several spikes borne in lower involucral bract sheaths, terminal spike male, remaining spikes androgynous, male part much shorter than female part, densely many flowered, linear-cylindric, 10-28 mm, thinly pedunculate. Female glumes yellowish brown, broadly ovate, ca. 2.5 mm, membranous, green 1-costate, white hyaline on apex, apex obtuse or acute, muticous. Utricles green-yellow, suberect, longer than glume, elliptic, plano-convex, ca. 3 mm, white hispidulous on upper part, thinly 9-11-veined, base abruptly contracted into a short stipe, apex abruptly contracted into a short beak less than 1 mm, orifice slightly splitting into 2 teeth. Nutlets brown, tightly enveloped, elliptic, compressed biconvex, ca. 2 mm, base estipitate; style base slightly thickened; stigmas 2. Fl. and fr. Jun-Sep.

● Lax or dense forests or thickets on mountain slopes or valleys, shady places at roadsides; 200-1500 m. Anhui, Gansu, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Zhejiang.


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