首页分享短叶水蜈蚣 Kyllinga brevifolia

短叶水蜈蚣 Kyllinga brevifolia

来源：花匠小妙招时间：2024-12-28 16:47

5.Kyllinga brevifolia Rottb?ll Descr. Icon. Rar. Pl. 13. 1773.

Perennials. Rhizomes slender, long creeping, clothed with brown, membranous scales, internodes 1-2.5 cm, with 1 culm at each node. Culms serially arranged, sometimes also laxly tufted, 2-30 cm tall, compressed 3-angled, smooth, base not swollen, with 4 or 5 leaf sheaths. Leaves shorter to slightly longer than culm; sheaths brown, mouth obliquely truncate, apex acuminate, basal 2 bladeless, apical 2 or 3 with a blade; leaf blade 5-15 cm × 2-4 mm, flaccid, flat, midvein and apical margin spinulose. Involucral bracts 3, leaflike, longest erect to oblique or horizontal. Spike 1(-3), globose to ovoid-globose, 5-11 × 4-10 mm, with numerous densely arranged spikelets. Spikelets narrowly oblong-ovoid to narrowly ovoid, ca. 3 × 1 mm, compressed, 1- or 2-flowered. Glumes white and rusty brown maculate or rarely straw-colored, ovate, 2.8-3 mm, keel spinulose or not, veins 2 or 3 on each side of keel, apex with a strict or recurved mucro or not mucronate. Stamens 1-3; anthers linear, ca. 0.7 mm. Style long; stigmas 2, less than 1/2 as long as style. Nutlet obovoid-oblong, 1-1.5 mm, biconvex, densely punctate. Fl. and fr. May-Oct.

多年生植物。根状茎纤细，长匍匐，覆盖棕色，膜质鳞片，节间1-2.5厘米，每个节具1秆。秆连续排列，有时也疏松丛生，2-30厘米高，压扁3角，平滑，基部不膨胀，具4或5叶鞘。叶短到稍长于秆；鞘棕色，口斜截形，先端渐尖，基部2无叶片，顶端2或3具叶片；叶片5-15厘米×2-4毫米，松弛，平，中脉和顶端边缘具刺。总苞片3，叶状，最长直立到倾斜或水平。穗1（-3），球状到卵球形，5-11×4-10毫米，具许多密集排列的小穗。小穗狭长圆形卵球形到狭卵球形，约3×1毫米，压扁，1或2花。颖片白色和锈棕色斑点状或很少稻草色，卵形，2.8-3毫米，龙骨状具刺与否，脉2或3在龙骨两侧，先端具一严格或下弯的短尖或不短尖。雄蕊1-3；花药线形，约0.7毫米。花柱长；柱头2，不到花柱的1/2长。小坚果倒卵球形长圆形，1-1.5毫米，双凸，浓密具点。花期和果期5-10月。【本中文为机器翻译，仅供阅读参考。】

Under shrubs or forests, grasslands, swamps, meadows, mountain slopes, valleys, wet places along trails, ditch margins, shallow water, river margins, wet places at seashores, paddy field margins; near sea level to 2800 m. Anhui, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xisha Qundao, S and SE Xizang, Yunnan, Zhejiang [Afghanistan, Bangladesh, Bhutan, India, Indonesia, Japan, Korea, Laos, Malaysia, Myanmar, Nepal, Pakistan, Papua New Guinea, Philippines, Russia (Far East), Sri Lanka, Thailand, Vietnam; tropical Africa, Atlantic Ocean islands, Australia, Central, North, and South America, Indian Ocean islands, Madagascar, Pacific islands].

灌木或森林、草地、沼泽、草甸、山坡、山谷、小径沿线的湿地、沟渠边缘、浅水、河流边缘、海岸的湿地、稻田边缘；海拔2800米。安徽、重庆、福建、甘肃、广东、广西、贵州、海南、河北、黑龙江、河南、湖北、湖南、江苏、江西、吉林、辽宁、陕西、山东、山西、四川、台湾、西沙群岛、西藏南部和东南部、云南、，浙江[阿富汗、孟加拉国、不丹、印度、印度尼西亚、日本、韩国、老挝、马来西亚、缅甸、尼泊尔、巴基斯坦、巴布亚新几内亚、菲律宾、俄罗斯（远东）、斯里兰卡、泰国、越南；热带非洲、大西洋群岛、澳大利亚、中美洲、北美和南美、印度洋群岛、马达加斯加、太平洋群岛]。【本中文为机器翻译，仅供阅读参考。】

Kyllinga brevifolia var. yunnanensis E. G. Camus (Notul. Syst. (Paris) 1: 239. 1910) could not be treated here because no material was seen by the present authors.

Kyllinga brevifolia var. yunnanensis E. G. Camus (Notul. Syst. (Paris) 1: 239. 1910) could not be treated here because no material was seen by the present authors.Kyllinga brevifolia var. yunnanensis E. G. Camus (Notul. Syst. (Paris) 1: 239. 1910) could not be treated here because no material was seen by the present authors.