具刚毛荸荠Heleocharis valleculosa Ohwi f. setosa (Ohwi) Kitagawa
具刚毛荸荠Heleocharis valleculosa Ohwi f. setosa (Ohwi) Kitagawa
具刚毛荸荠（变型）
Heleocharis valleculosa form. setosa (Ohwi) Kitagawa, Lineam. Fl. Mansh. (1939) 121 ——Heleo-charis valleculosa Ohwi var. setosa Ohwi in Act. Phytotax. et Geobot. II (1933) 29 et Cyper. Jap. II (1944) 47——Eleocharis palustris Bunge, Enum. Pl. ChinaBor. (1832) 142, non Roem. et Schult.; C. B. Clarke in Forbes et Hemsl. Ind. Fl. Siren. III in Journ. Linn. Soc. Bot. XXXVI (1903) 227 et in Bull. Acad.Geogr. Int. Bot. XVI (1904) 62; Diels in Engl. Pot. Jahrb. XXXVI Beibl.82 (1905) 7; Kukenth. in Fedde Repert. Nov. Sp. Beih. XII (1922) 308 Scirpus palustris Franch. in Mem Soc. Sci. Nat. Cherb. XXIV (1884) 262, non Linn. et Pl. David. I (1884) 317——Eleocharis truncatovaginata T. Koyamain Journ. Jap. Bot. XXXII (1957) 148, syn. nov.
有匍匐根状茎。稈多数或少数，一单生或丛生，圆柱状，干后略扁，高6-50厘米，直径1-3毫米，有少数锐肋条。叶缺如，在稈的基部有1-2个长叶鞘，鞘膜质，鞘的下部紫红色，鞘口平，高3-10厘米。小穗长圆状卵形或线状披针形，少有椭圆形和长圆形，长7-20毫米，宽2.5-3.5毫米，后期为麦稈黄色，有多数或极多数密生的两性花；在小穗基部有2片鳞片中空无花，抱小穗基部的1/2-2/3周以上；其余鳞片全有花，卵形或长圆状卵形，顶端钝，长3毫米，宽1.7毫米，背部淡绿色或苍白色，有一条脉，两侧狭，淡血红色，边缘很宽，白色，干膜质；下位刚毛4条，其长明显超过小坚果，很淡锈色，略弯曲，不向外展开，具密的倒刺；柱头2。小坚果圆倒卵形，双凸状，长1毫米，宽大致相同，淡黄色；花柱基为宽卵形，长为小坚果的1/3，宽约为小坚果的1/2,海绵质。花果期6-8月。
几遍布全国；生长在浅水中，海拔150-880米。也分布于朝鲜和日本。
《Flora of China》 Vol. 23 (2010)
Eleocharis valleculosa var. setosa Ohwi Acta Phytotax. Geobot. 2: 29. 1933.
具刚毛荸荠 ju gang mao bi qi
Eleocharis valleculosa f. setosa (Ohwi) Kitagawa.
Perennials, with a rhizomes and stolons. Culms single or tufted, 6-50 cm tall, 1-3 mm thick, terete, with a few sharp ribs. Leaf sheaths 1 or 2, basally purplish red, tubular, 3-10 cm, mouth truncate. Spikelet oblong-ovoid to narrowly oblong-ovoid, rarely ellipsoid to oblong, 0.7-2 cm × 2.5-3.5 mm, many flowered. Basal 2 glumes empty, amplexicaul for 1/2-2/3 of spikelet base; fertile glumes greenish to pale medially and with a narrow pale blood-red band on sides, ovate to oblong-ovate, ca. 3 × 1.7 mm, margin broadly hyaline, apex obtuse. Perianth bristles 4, distinctly longer than nutlet, slightly curved and not spreading, densely retrorsely spinulose. Stigmas 2. Nutlet yellowish, globose-obovoid, ca. 1 × 1 mm, biconvex, smooth; persistent style base broadly ovoid, ca. 1/3 as long and ca. 1/2 as wide as nutlet, spongy. Fl. and fr. Jun-Aug.
Shallow water; 100-4300 m. Anhui, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Japan, Korea].
Eleocharis valleculosa var. valleculosa occurs in Japan and Korea and differs by lacking perianth bristles.Eleocharis valleculosa var. valleculosa occurs in Japan and Korea and differs by lacking perianth bristles.
科名：莎草科 Cyperaceae
属名：荸荠属 Heleocharis
具刚毛荸荠（变型）
Heleocharis valleculosa form. setosa (Ohwi) Kitagawa, Lineam. Fl. Mansh. (1939) 121 ——Heleo-charis valleculosa Ohwi var. setosa Ohwi in Act. Phytotax. et Geobot. II (1933) 29 et Cyper. Jap. II (1944) 47——Eleocharis palustris Bunge, Enum. Pl. ChinaBor. (1832) 142, non Roem. et Schult.; C. B. Clarke in Forbes et Hemsl. Ind. Fl. Siren. III in Journ. Linn. Soc. Bot. XXXVI (1903) 227 et in Bull. Acad.Geogr. Int. Bot. XVI (1904) 62; Diels in Engl. Pot. Jahrb. XXXVI Beibl.82 (1905) 7; Kukenth. in Fedde Repert. Nov. Sp. Beih. XII (1922) 308 Scirpus palustris Franch. in Mem Soc. Sci. Nat. Cherb. XXIV (1884) 262, non Linn. et Pl. David. I (1884) 317——Eleocharis truncatovaginata T. Koyamain Journ. Jap. Bot. XXXII (1957) 148, syn. nov.
有匍匐根状茎。稈多数或少数，一单生或丛生，圆柱状，干后略扁，高6-50厘米，直径1-3毫米，有少数锐肋条。叶缺如，在稈的基部有1-2个长叶鞘，鞘膜质，鞘的下部紫红色，鞘口平，高3-10厘米。小穗长圆状卵形或线状披针形，少有椭圆形和长圆形，长7-20毫米，宽2.5-3.5毫米，后期为麦稈黄色，有多数或极多数密生的两性花；在小穗基部有2片鳞片中空无花，抱小穗基部的1/2-2/3周以上；其余鳞片全有花，卵形或长圆状卵形，顶端钝，长3毫米，宽1.7毫米，背部淡绿色或苍白色，有一条脉，两侧狭，淡血红色，边缘很宽，白色，干膜质；下位刚毛4条，其长明显超过小坚果，很淡锈色，略弯曲，不向外展开，具密的倒刺；柱头2。小坚果圆倒卵形，双凸状，长1毫米，宽大致相同，淡黄色；花柱基为宽卵形，长为小坚果的1/3，宽约为小坚果的1/2,海绵质。花果期6-8月。
几遍布全国；生长在浅水中，海拔150-880米。也分布于朝鲜和日本。
《Flora of China》 Vol. 23 (2010)
Eleocharis valleculosa var. setosa Ohwi Acta Phytotax. Geobot. 2: 29. 1933.
具刚毛荸荠 ju gang mao bi qi
Eleocharis valleculosa f. setosa (Ohwi) Kitagawa.
Perennials, with a rhizomes and stolons. Culms single or tufted, 6-50 cm tall, 1-3 mm thick, terete, with a few sharp ribs. Leaf sheaths 1 or 2, basally purplish red, tubular, 3-10 cm, mouth truncate. Spikelet oblong-ovoid to narrowly oblong-ovoid, rarely ellipsoid to oblong, 0.7-2 cm × 2.5-3.5 mm, many flowered. Basal 2 glumes empty, amplexicaul for 1/2-2/3 of spikelet base; fertile glumes greenish to pale medially and with a narrow pale blood-red band on sides, ovate to oblong-ovate, ca. 3 × 1.7 mm, margin broadly hyaline, apex obtuse. Perianth bristles 4, distinctly longer than nutlet, slightly curved and not spreading, densely retrorsely spinulose. Stigmas 2. Nutlet yellowish, globose-obovoid, ca. 1 × 1 mm, biconvex, smooth; persistent style base broadly ovoid, ca. 1/3 as long and ca. 1/2 as wide as nutlet, spongy. Fl. and fr. Jun-Aug.
Shallow water; 100-4300 m. Anhui, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Japan, Korea].
Eleocharis valleculosa var. valleculosa occurs in Japan and Korea and differs by lacking perianth bristles.Eleocharis valleculosa var. valleculosa occurs in Japan and Korea and differs by lacking perianth bristles.