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

27. Eleocharis abnorma Y. D. Chen, Bull. Bot. Res., Harbin. 7(2): 124. 1987.

短刚毛荸荠 duan gang mao bi qi

Perennials. Stolons short to long. Culms tufted, 8-25 cm tall, ca. 1 mm thick, smooth, glabrous. Leaf sheaths 1 or 2, basally purplish brown, 1.2-3.5 cm, mouth obliquely truncate. Spikelet broadly ovoid to oblong, 3-8 × 3-4 mm, few flowered to not more than 10-flowered. Basalmost glume empty, amplexicaul for 1/2 or more of spikelet base; fertile glumes purplish brown, slightly laxly imbricate, ovate to broadly ovate, ca. 3.5 × 2 mm, margin hyaline, apex acuminate. Perianth bristles 4, shorter than nutlet, retrorsely spinulose. Stigmas 2. Nutlet yellowish brown, obovoid, ca. 1.5 × 1.4 mm, biconvex, smooth; persistent style base white basally and dark brown at apex, shortly conic, 1/4-1/3 as long and 1/3-1/2 as wide as nutlet, spongy, apex obtuse to nearly half-oblong. Fl. and fr. Jul-Aug.

● Shallow water at lake margins; ca. 3300 m. Qinghai (Qinghai Hu).


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