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大花玄参Scrophularia delavayi

时间:2013-11-09 15:50来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 大花玄参 学名( Scientific Name ): Scrophularia delavayi Franch. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Scrophularia campanulata H. L. Li Scrophularia muliensis H.
中文名(Chinese Name):大花玄参
学名(Scientific Name):Scrophularia delavayi Franch.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Scrophularia campanulata H. L. Li  Scrophularia muliensis H. L. Li
科属(Family & Genus):玄参科(Scrophulariaceae)玄参属
形态特征(Description):多年生草本,高达45厘米;根较茎粗壮,上部粗达12毫米,下部分裂成数条细长支根。茎常丛生,中空,有疏毛,基部各节具苞片状鳞叶。叶柄长可达4厘米,扁平有狭翅,无毛或被疏毛;叶片卵形至卵状菱形,长2.5-7厘米,基部宽楔形至近截形,边缘有缺刻状重锯齿,无毛或有疏毛。花序近头状或多少伸长为穗状,长3-10厘米,有腺毛,具1-3轮,聚伞花序具花1-3朵,花梗极短至长达10毫米;花萼长5-7毫米,歪斜,多少二唇形,上方3裂片开裂较浅,下方2裂片开裂较深而小,顶端锐尖,无毛或有疏腺毛;花冠黄色,长9-15毫米,外面无毛,上唇及其下筒中有长柔毛,上唇显著长于下唇,裂片圆形,边缘互相重叠,下唇的中裂片多少舌形而狭,花冠筒几呈钟形,长约6毫米;雄蕊达下唇裂片之半,退化雄蕊圆形或多少肾形;子房长约3毫米,花柱长为子房的2倍或稍多。蒴果狭尖卵形,连同短喙长约7毫米。花期5-7月,果期8月。
分布(Distribution):为我国特有种,产云南、四川,生海拔3100-3800米山坡草地或灌木丛中湿润岩隙。
用途(Use):
引自中国植物志英文版:FOC Vol. 18 Page 19     
Scrophularia delavayi Franchet, Bull. Soc. Bot. France. 47: 15. 1900.
大花玄参 da hua xuan shen| Scrophulariaceae  | Scrophularia
Scrophularia campanulata H. L. Li; S. muliensis H. L. Li.
Perennials, to 45 cm tall. Rhizomes apically to 1.2 cm in diam. Stems fascicled, hollow, sparsely hairy. Basal leaves scalelike. Upper leaves petiole to 4 cm, flattened, narrowly winged; leaf blade ovate to ovate-rhomboid, 2.5-7 cm, usually glabrous, base broadly cuneate to subtruncate, margin incised and double serrate. Thyrses subcapitate or subspicate, 3-10 cm, 1-3-whorled, glandular hairy; cymes 1-3-flowered. Pedicel to 1 cm. Calyx 5-7 mm, oblique, somewhat 2-lipped; lobes acute. Corolla yellow, 0.9-1.5 cm, outside glabrous; tube subcampanulate, ca. 6 mm, inside villous; lower lip middle lobe narrow, ligulate; upper lip longer than lower lip, inside villous, lobes orbicular, with overlapping margins. Stamens ca. 1/2 length of lower lip; staminode rounded to subreniform. Ovary ca. 3 mm. Style at least 2 X as long as ovary. Capsule narrowly ovoid, ca. 7 mm. Fl. May-Jul, fr. Aug.
* Grassland on mountain slopes, moist areas in scrub, rocky crevices; 3100-3800 m. SW Sichuan, N Yunnan.
 




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