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弯管列当Orobanche cernua

时间:2013-10-23 14:48来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 弯管列当 学名( Scientific Name ): Orobanche cernua Loefling 英文名( English Common Name ): 别名( Chinese Common Name ): 二色列当,欧亚列当 异名( Synonym ): 科属( Family Genus ): 列当科(Orobanchace
中文名(Chinese Name):弯管列当
学名(Scientific Name):Orobanche cernua Loefling
英文名(English Common Name):
别名(Chinese Common Name):二色列当,欧亚列当
异名(Synonym):
科属(Family & Genus):列当科(Orobanchaceae)列当属
形态特征(Description):一年生、二年生或多年生寄生草本,高15-35(-40)厘米,全株密被腺毛,常具多分枝的肉质根。茎黄褐色,圆柱状,不分枝,直径0.6-1.5厘米。叶三角状卵形或卵状披针形,长1-1.5厘米,宽5-7毫米,连同苞片、花萼和花冠外面密被腺毛,内面近无毛。花序穗状,长5-20(-30)厘米,具多数花;苞片卵形或卵状披针形,长1-1.5厘米,宽5-6毫米。花萼钟状,长1-1.2厘米,2深裂至基部,或前面分裂至基部,而后面仅分裂至中部以下或近基部,裂片顶端常2浅裂,极少全缘,小裂片线形,常是后面2枚较长,前面2枚较短,先端尾尖。花冠长1-2.2厘米,在花丝着生处(特别是在花期后)明显膨大,向上缢缩,口部稍膨大,筒部淡黄色,在缢缩处稍扭转地向下膝状弯曲;上唇2浅裂,下唇稍短于上唇,3裂,裂片淡紫色或淡蓝色,近圆形,边缘不规则地浅波状或具小圆齿。雄蕊4枚,花丝着生于距筒基部5-7毫米处,长6-8毫米,无毛,基部稍增粗,花药卵形,长1-1.2毫米,常无毛。子房卵状长圆形,花柱稍粗壮,长6-8毫米,无毛,柱头2浅裂。蒴果长圆形或长圆状椭圆形,长1-1.2厘米,直径5-7毫米,干后深褐色。种子长椭圆形,长约0.4-0.5毫米,直径0.18毫米,表面具网状纹饰,网眼底部具蜂巢状凹点。花期5-7月,果期7-9月。
分布(Distribution):产吉林西部(长岭)、内蒙古、河北、山西、陕西、甘肃、青海和新疆。生于针茅草原、山坡、林下、路边及沙丘上,海拔500-3000米;常寄生于篙属Artemisia L.植物或谷类值 物根上,为田间杂草。中欧,地中海区,苏联欧洲部分、高加索、西伯利亚及中亚等地区,亚州西部和蒙古也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 18 Page 235
Orobanche cernua Loefling, Iter Hispan. 152. 1758.
弯管列当 wan guan lie dang | Orobanchaceae  | Orobanche
Herbs annual, biennial, or perennial, 15-35(-40) cm tall, densely glandular pubescent, usually with branched fleshy roots. Stems unbranched. Leaves deltate-ovate or ovate-lanceolate, 1-1.5 cm X 5-7 mm, along with bracts, calyx, and corolla densely glandular pubescent abaxially, glabrescent adaxially. Inflorescences spicate, 5-20(-30) cm; bract ovate or ovate-lanceolate, 1-1.5 cm X 5-6 mm; bractlets absent. Calyx campanulate, 1-1.2 cm, irregularly 2-parted to base; segments 2-lobed, rarely entire; lobes linear, 2 longer than others. Corolla 1-2.2 cm; tube pale yellow or dark blue-purple, distinctly enlarged, turned into a rounded curve or suberect, constricted upward; upper lip 2-lobed; lower lip slightly shorter than upper; lobes pale purple or pale blue, subrounded. Filaments 7-9 mm, glabrous or pubescent basally; anthers ovoid, 1-1.2 mm, glabrous. Ovary ovoid-oblong. Style 6-8 mm; stigma 2-lobed. Capsule oblong or oblong-ellipsoid, 1-1.2 cm X 5-7 mm. Seeds long ellipsoid, 0.4-0.5 X ca. 0.2 mm.
Grasslands, slopes, forests, roadsides; 500-3000 m. Gansu, Hebei, W Jilin, Nei Mongol, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, W Xizang [Afghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Nepal, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbekistan; SW Asia, Europe].




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