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毛裂蜂斗菜Petasites tricholobus

时间:2013-07-23 14:39来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):毛裂蜂斗菜 学名( Scientific Name ): Petasites tricholobus Franch. 英文名( English Common Name ): 别名( Chinese Common Name ): 冬花、蜂斗菜 异名( Synonym ): Ligularia petelotii Merr. Petasites himalaicu






中文名(Chinese Name):毛裂蜂斗菜
学名(Scientific Name):Petasites tricholobus Franch.
英文名(English Common Name):
别名(Chinese Common Name):冬花、蜂斗菜
异名(Synonym):Ligularia petelotii Merr.  Petasites himalaicus Kitam.  Petasites mairei H. Lév.  Petasites petelotii (Merr.) Kitam.  Petasites vanioti H. Lév.  Petasites vaniotii H.Lév.
科属Family & Genus):菊科(Compositae)蜂斗菜属
形态特征(Description):年生草本,根状茎短,有多数纤维状根,全株被薄蛛丝状白色绵毛。早春从根状茎长出花茎,近雌雄异株;雌株花茎高27-60厘米,具鳞片状叶;苞叶卵状披针形,长3-4厘米,基生叶具长柄,叶片宽肾状心形,长2-8厘米,边缘有细齿,齿端具软骨质小尖,叶脉掌状两面被白色绵毛,或后多少脱毛;雌头状花序在花茎顶端排成密集的聚伞状圆锥花序,直径8-12毫米;花序梗长1-2.5厘米,有1或数枚披针形苞叶;总苞钟状;总苞片1层,10-12个,披针形,或披针状长圆形,长约7毫米,外面有小苞片雌花花冠顶端4-5撕裂,裂片不等长,丝状或钻形;花柱伸出花冠;柱头2裂;雄头状花序在花茎端排成伞房状或圆锥状,花冠管状,裂片披针形;花柱伸出花冠外,柱头头状,略分枝,瘦果圆柱形,无毛;雌花的冠毛丰富,白色;雄花的冠毛较少,短于花冠。
分布(Distribution):产山西、陕西、甘肃、青海、云南、四川、贵州、西藏等地,常生于海拔700-4200山谷路旁或水旁。尼泊尔、印度及越南也有。
用途(Use):
引自中国植物志英文版FOC Vol. 20-21 Page 462, 463
Petasites tricholobus Franchet, Nouv. Arch. Mus. Hist. Nat., sér. 2. 6: 52. 1883.
毛裂蜂斗菜 mao lie feng dou cai| Asteraceae  | Petasites
Ligularia petelotii Merrill; Petasites himalaicus Kitamura; P. mairei H. Léveillé; P. petelotii (Merrill) Kitamura; P. vaniotii H. Léveillé.
Plants subdioecious. Rhizomes short, with numerous fibrous roots, thinly arachnoid-lanate. Scapes emerging from rhizomes in early spring. Stems of female synflorescences 27-60 cm tall, with scale-shaped leaves; bracteal leaves ovate-lanceolate, 3-4 cm, basal leaves long petiolate; blade broadly reniform-cordate, 2-8 cm, both surfaces white lanate, or later ± glabrescent, palmately veined, margin finely toothed, with cartilaginous mucronulate teeth. Male capitula arranged in terminal corymbs or panicles; corolla tubular, segments lanceolate; style exceeding corolla, stigma capitate, slightly branched. Female capitula densely arranged in terminal cymose panicles, 8-12 mm in diam.; peduncles 1-2.5(-8) cm, with 1 to few lanceolate bracteal leaves; involucres campanulate, 10-12 mm; phyllaries uniseriate, 10-12, lanceolate or lanceolate-oblong, ca. 7 mm, calyculate; corolla apically 4- or 5-lacerate; segments unequal, filiform or subulate; style exceeding corolla, stigma 2-fid. Achenes cylindric, glabrous. Pappus of many fine bristles in female florets, in male few, shorter than corolla. Fl. Apr-Jun.
Roadsides, by streams in valleys; 700-4300 m. Gansu, Guizhou, Henan, Qinghai, Shaanxi, Shanxi, Sichuan, Xizang, Yunnan [Bhutan, India, Nepal, Vietnam].
The plants of Petasites tricholobus are used medicinally as in P. japonicus.
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