目前为止，中国西南野生生物种质资源库共保藏该物种: 种子16份; DNA材料24份;

• 科:莎草科    Cyperaceae
• 属:嵩草属    Kobresia
• 种:大花嵩草   Kobresia macrantha

14. Kobresia macrantha Boeckeler, Beitr. Cyper. 1: 39. 1888. 大花嵩草 da hua song cao Blysmocarex macrantha (Boeckeler) K. V. Ivanova; B. macrantha subsp. nudicarpa (Y. C. Yang) D. S. Deng; B. nudicarpa Y. C. Yang; Kobresia macrantha var. nudicarpa (Y. C. Yang) P. C. Li; K. nudicarpa (Y. C. Yang) S. R. Zhang.Rhizomes elongate, slender, stoloniferous. Basal sheaths pale brown, retaining dried leaf blades. Culms scattered, erect, trigonous, 3-17 cm tall, 1-1.5 mm in diam. Leaves basal, shorter than culms; blade flat, 1-3 mm wide, midrib distinct abaxially. Inflorescence paniculate, cylindric to ovoid, 1-2 × 0.6-1 cm; inflorescence branches androgynous or unisexual (whole inflorescence sometimes ± unisexual), lowest branch sometimes slightly distant; lowest involucral bract leaflike or glumelike, apex long aristate. Spikelets usually unisexual; glumes chestnut-brown with green midvein, ovate to ovate-lanceolate, 4-6.3 × 2-2.3 mm, margin broadly hyaline, apex acute or obtuse. Prophylls yellowish brown, ovate-lanceolate, 3-3.6 × 1.2-2 mm, thinly membranous, 2-keeled, keels smooth, margins free or connate at base. Nutlets elliptic-ovoid or subcircular, flattened, 1.4-2 × 0.8-1 mm, not beaked, conspicuously stipitate, stipe 0.6-1 mm. Sterile rachilla of female spikelets terete, minute, subequaling stipe of nutlet. Stigmas 2, very long. Fl. and fr. Jun-Aug.Open ground, sandy soils, meadows in river valleys; 2500-4800 m. Gansu, Qinghai, Sichuan, Xinjiang, Xizang [Nepal].【引自：Flora of China】

具细长匍匐根状茎。秆纤细，稍坚挺，高6-20厘米，粗1-1.5毫米，钝三棱形，光滑，基部具稀少的淡褐色宿存叶鞘。叶短于秆，平张，宽1.5-3毫米。圆锥花序紧缩成穗状，卵形或卵状长圆形，长1-2厘米，宽5-13毫米；苞片鳞片状，顶端具长芒，有时基部1枚之芒可长于花序；小穗3-9个，密生或基部的1个稍疏远，椭圆形，长4-7毫米，雄雌顺序；支小穗10余个，单性，顶生的3-5个雄性，其余的雌性，仅具1朵雌花，但极少在雌花之上尚有1-3枚雄花。雌花鳞片长圆状披针形或卵状披针形，长4-5毫米，顶端渐尖，膜质，两侧栗褐色或褐色，具宽的白色薄膜质边缘，中间绿色，有1条中脉。先出叶卵状披针形，长2.5-3毫米，膜质，下部黄白色，上部栗褐色，腹面边缘分离几至基部，背面具平滑的2脊，脊间无明显之脉，顶端微凹。小坚果卵圆形或宽椭圆形，平凸状，长约2毫米，成熟时褐色，有光泽，基部圆，有约1毫米长之柄，顶端微圆，无喙；花柱基部不增粗，柱头2个。退化小穗轴刚毛状，与果柄近等长。 【引自：中国植物志】