白花刺参Acanthocalyx alba

中文名Chinese Name):白花刺参
学名Scientific Name):Acanthocalyx alba (Hand.-Mazz.) M. Connon
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Morina nepalensis var. alba (Hand.-Mazz.) Y. C. Tang  Morina alba Hand.-Mazz.  Morina leucoblephara Hand.-Mazz.
科属(Family & Genus):川续断科(Dipsacaceae)刺续断属
形态特征(Description):多年生草本;植株较纤细,茎单1或2-3分枝,高 (10-) 20-50厘米,上部疏被纵列柔毛。基生叶线状披针形,长10-20厘米,宽0.5-1.2厘米,先端渐尖,基部渐狭,成鞘状抱茎,边缘有疏刺毛,两面光滑,叶脉明显;茎生叶对生,2-4对,长圆状卵形至披针形,向上渐小,边缘具刺毛。花茎从基生叶旁生出。假头状花序顶生,径3-5厘米,含10花以上,有时达20花,枝下部近顶处的叶腋中间有少数花存在;总苞苞片4-6对,坚硬,长卵形至卵圆形,渐尖,向上渐小,边缘具多数黄色硬刺,基部更多;小总苞钟形,无柄,长8-10毫米,脉明显,顶端平截,被长柔毛,并具长短不一的齿刺15条以上;花萼筒状,绿色,长7-9毫米,裂口甚大,达花萼的一半,边缘具长柔毛及齿刺,齿刺数目一般为5,有时可达10枚以上,排列不规则;花冠白色或紫色,径7-9毫米,不整齐,稍近左右对称,花冠管径约3毫米,长2-2.5毫米,外弯,被长柔毛,裂片5,倒心形,长3-4毫米,先端凹陷;雄蕊4,二强,花丝较短,着生于花冠喉部;花柱高出雄蕊,柱头头状。果柱形,长4-6毫米,蓝褐色,被短毛,具皱纹,顶端斜截形。花期6-8月,果期7-9月。
分布(Distribution):产西藏、云南、四川、青海及甘肃。生于海拔3000-4000米的山坡草甸或林下。
用途(Use):
引自中国植物志英文版FOC Vol. 19 Page 649, 650
Acanthocalyx alba (Handel-Mazzetti) M. J. Cannon, Bull. Brit. Mus. (Nat. Hist.), Bot. 12(1): 14. 1984.
白花刺续断 bai hua ci xu duan | Morinaceae  | Acanthocalyx
Morina alba Handel-Mazzetti, Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 62: 68. 1925; M. leucoblephara Handel-Mazzetti; M. nepalensis D. Don var. alba (Handel-Mazzetti) Y. C. Tang ex C. H. Hsing.
Caudex covered with remnants of old leaf bases. Fertile stems 1-3, 10-40 cm tall. Rosulate leaves linear or linear-lanceolate, 10-20 × 0.5-1 cm, both surfaces glabrous, base attenuate, margins entire. Leaves on flowering stems 2-4-paired, similar to rosulate leaves but shorter; petioles folded, sheathing; lowermost pair often much smaller, subovate, usually spineless, with sheaths nearly as long as or longer than blades; uppermost pair of leaves densely spiny and much broader at base. Inflorescences capitellate, sometimes with 1 or 2 separate flower clusters below primary head; involucral bracts ovate, spinose, concave or folded; involucels sessile, tubular-campanulate, 4-7 mm, apex truncate, villous, with 12-16 irregular spines. Calyx green, tubular, 5-8 mm; tube 1-2.5 mm; limb usually with 2 lateral and 3 posterior teeth, margins villous. Corolla white, yellowish, or yellowish green; tube markedly curved, 12-20 mm, densely puberulent above; limb 5-lobed; lobes obcordate, ca. 3 mm. Filaments inserted at corolla throat. Style longer than stamens. Achenes columnar, 4-6 mm, glabrous to densely puberulent. Fl. Jun-Aug, fr. Jul-Sep.
Subalpine or alpine meadows, forests; 2500-4100 m. SE Gansu (Tao He basin), S Qinghai, W Sichuan, SE Xizang, NW Yunnan [N India].
白花刺参Acanthocalyx alba

白花刺参Acanthocalyx alba
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