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FOC | Family List | FOC Vol. 23 | Cyperaceae | Schoenoplectus

14. Schoenoplectus juncoides (Roxburgh) Palla, Bot. Jahrb. Syst. 10: 299. 1888.

萤蔺 ying lin

Scirpus juncoides Roxburgh, Fl. Ind. 1: 216. 1820; Schoenoplectiella juncoides (Roxburgh) Lye; Scirpus juncoides var. ohwianus (T. Koyama) T. Koyama; S. ohwianus T. Koyama.

Roots many, fibrous. Rhizomes short. Culms tufted, 18-70 cm tall, 1.5-7 mm thick, slightly stiff, opaque, obtusely to faintly several angled, smooth, clothed at base with 2 or 3 bladeless leaf sheaths. Leaf sheaths pale green, 5-15 cm, obliquely truncate at mucronate mouth. Involucral bract 1, erect, pale green, culmlike, 3-15 cm. Inflorescence a pseudolateral head with (2 or)3-5(-9) spikelets. Spikelets brown to pale brown, oblong-ovoid, 8-17 × 3.5-5 mm, many flowered. Glumes brown or brown with brown lines, broadly ovate to ovate, 3-4 × 1.8-2 mm, membranous, apex with a 3-veined green costa excurrent into a mucro. Perianth bristles 5 or 6, equaling or shorter than nutlet, retrorsely scabrous except at base. Stamens 3; anthers oblong; connective apex evident beyond anthers. Style 2-2.2 mm; stigmas 2. Nutlet dark brown at maturity, broadly obovoid to obovoid, ca. 2 mm, plano-convex, obscurely transversely wrinkled, shiny. Fl. and fr. Aug-Nov.

Wetlands, paddy field margins; 800-2000 m. Anhui, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, S Xinjiang, SE Xizang, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Kashmir, Korea, Malaysia, Nepal, Pakistan, Papua New Guinea, Philippines, Sri Lanka, Tajikistan, Thailand, Uzbekistan; SW Asia, Australia, Indian Ocean islands, Madagascar, Pacific islands].

A putative hybrid between Schoenoplectus juncoides and S. schoofii, described from NE Yunnan (Dongchuan), was named Scirpus ×intermedius Tang & F. T. Wang (Fl. Reipubl. Popularis Sin. 11: 224. 1961), but that name is illegitimate because it is a later homonym of S. intermedius Thuillier (Fl. Env. Paris, ed. 2, 21. 1799).


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