急折百蕊草Thesium refractum C. A. Mey.
急折百蕊草Thesium refractum C. A. Mey.
8.急折百蕊草（植物分类学报）九龙草、九仙草（云南）
Thesium refractum C. A. Mey. in Bull. Soc. Acad. Petersb. 8: 340. 1841: Ledeb. Fl. Ross. 3 (2) : 529. 1849-51; E. Bobrov in Fl. URSS 5:421. 1936; 郝景盛, 植物分类学报1 (3-4) : 337. 1951; Ohwi, Fl. Jap. 447. 1956.
多年生草本，高20-40厘米；根茎直，颇粗壮；茎有明显的纵沟。叶线形，长3-5厘米，宽2-2.5毫米，顶端常钝，基部收狭不下延，无柄，两面粗糙，通常单脉。总状花序腋生或顶生；花白色，长5-6毫米；总花梗呈之字形曲折；花梗长5-7毫米，细长，有棱，花后外倾并渐反折；苞片1枚，长6-8毫米，叶状，开展；小苞片2枚；花被筒状或阔漏斗状，上部5裂，裂片线状披针形；雄蕊5，内藏；子房柄很短，花柱圆柱状，不外伸。坚果椭圆状或卵形，长3毫米，直径2-2.5毫米，表面有5-10条不很明显的纵脉（或棱），纵棱偶分叉；宿存花被长1.5厘米；果柄长达1厘米，果熟时反折。花期7月，果期9月。
产于我国西南、西北、华北至东北地区，为常见种之一。生于草甸和多砂砾的坡地。苏联（中亚地区和西伯利亚）、蒙古、朝鲜、日本也有分布。模式标本采自苏联西伯利亚。
《Flora of China》 Vol. 5 (2003)
Thesium refractum C. A. Meyer
急折百蕊草 ji zhe bai rui cao
Herbs perennial; rhizomes straight, rather strong. Stems erect or ascending, 20-40 cm. Leaves sessile, lanceolate, 30-50 × 2-2.5 mm, rugose on both sides, usually 1-veined, base contracted but not decurrent, apex usually obtuse. Inflorescences racemelike, often branched, rachis zigzagged, especially near apex, with 1 flower per axil; bracts inserted at tip of pedicel, patent, leaflike, 6-8 mm; pedicel decumbent and gradually reflexed after flowering, slender, 5-7 mm, ridged; bracteoles 2, slightly shorter than or as long as bracts. Perianth 5-merous, white, 5-6 mm, tube tubular or broadly funnelform, lobes linear-lanceolate. Stamens 5, not exserted. Ovary stalk very short. Style terete, not exserted. Nutlet ellipsoid or ovoid, ca. 3 × 2-2.5 mm, with 5-10 inconspicuous longitudinal veins (or ridges), ridges sometimes forked; persistent perianth ca. 1.5 mm; fruit stalk to 1 cm, reflexed in mature fruit. Fl. Jul, fr. Sep.
Grassy marshlands, sandy slopes. Gansu, Heilongjiang, Hubei, Hunan, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Japan, Korea, Kazakhstan, Kyrgyzstan, Mongolia, Russia].
别名：珍珠草;九仙草;反折百蕊草;九龙草;毛瑞-麦令嘎日;百蕊草;急杆百蕊草;绿珊瑚;
科名：檀香科 Santalaceae
属名：百蕊草属 Thesium
8.急折百蕊草（植物分类学报）九龙草、九仙草（云南）
Thesium refractum C. A. Mey. in Bull. Soc. Acad. Petersb. 8: 340. 1841: Ledeb. Fl. Ross. 3 (2) : 529. 1849-51; E. Bobrov in Fl. URSS 5:421. 1936; 郝景盛, 植物分类学报1 (3-4) : 337. 1951; Ohwi, Fl. Jap. 447. 1956.
多年生草本，高20-40厘米；根茎直，颇粗壮；茎有明显的纵沟。叶线形，长3-5厘米，宽2-2.5毫米，顶端常钝，基部收狭不下延，无柄，两面粗糙，通常单脉。总状花序腋生或顶生；花白色，长5-6毫米；总花梗呈之字形曲折；花梗长5-7毫米，细长，有棱，花后外倾并渐反折；苞片1枚，长6-8毫米，叶状，开展；小苞片2枚；花被筒状或阔漏斗状，上部5裂，裂片线状披针形；雄蕊5，内藏；子房柄很短，花柱圆柱状，不外伸。坚果椭圆状或卵形，长3毫米，直径2-2.5毫米，表面有5-10条不很明显的纵脉（或棱），纵棱偶分叉；宿存花被长1.5厘米；果柄长达1厘米，果熟时反折。花期7月，果期9月。
产于我国西南、西北、华北至东北地区，为常见种之一。生于草甸和多砂砾的坡地。苏联（中亚地区和西伯利亚）、蒙古、朝鲜、日本也有分布。模式标本采自苏联西伯利亚。
《Flora of China》 Vol. 5 (2003)
Thesium refractum C. A. Meyer
急折百蕊草 ji zhe bai rui cao
Herbs perennial; rhizomes straight, rather strong. Stems erect or ascending, 20-40 cm. Leaves sessile, lanceolate, 30-50 × 2-2.5 mm, rugose on both sides, usually 1-veined, base contracted but not decurrent, apex usually obtuse. Inflorescences racemelike, often branched, rachis zigzagged, especially near apex, with 1 flower per axil; bracts inserted at tip of pedicel, patent, leaflike, 6-8 mm; pedicel decumbent and gradually reflexed after flowering, slender, 5-7 mm, ridged; bracteoles 2, slightly shorter than or as long as bracts. Perianth 5-merous, white, 5-6 mm, tube tubular or broadly funnelform, lobes linear-lanceolate. Stamens 5, not exserted. Ovary stalk very short. Style terete, not exserted. Nutlet ellipsoid or ovoid, ca. 3 × 2-2.5 mm, with 5-10 inconspicuous longitudinal veins (or ridges), ridges sometimes forked; persistent perianth ca. 1.5 mm; fruit stalk to 1 cm, reflexed in mature fruit. Fl. Jul, fr. Sep.
Grassy marshlands, sandy slopes. Gansu, Heilongjiang, Hubei, Hunan, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Japan, Korea, Kazakhstan, Kyrgyzstan, Mongolia, Russia].