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多花山姜Alpinia polyantha

时间:2013-12-04 17:58作者:徐晔春 点击: 次 标签: Zingiberaceae 姜科 山姜属 Alpinia
  中文名(Chinese Name):多花山姜
学名(Scientific Name):Alpinia polyantha D. Fang
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):姜科(Zingiberaceae)山姜属
形态特征(Description):茎高达4.6米,直径达2.5,厘米;根茎粗,匍匐。叶约达9片,叶片披针形至椭圆形,长达1米,宽24厘米,顶端渐尖,基部楔形,叶面无毛,叶背被茸毛或无毛,边被长缘毛,叶柄长1-9厘米,密被茸毛;叶舌长1-2厘米,2,裂,质厚,密被茸毛;叶鞘具粗条纹,密被茸毛。圆锥花序长37-61厘米,宽7-9厘米,直立;分枝长0.5-3厘米,分枝上的花5-8朵;花序轴、分枝和花梗密被茸毛;总苞片长圆状披针形,长达27厘米,宽达5.5厘米,除顶端和边缘外无毛;小苞片倒披针形至长圆形,扁平,长1-2.3厘米,宽3-7毫米,膜质,花梗长1-10毫米;花萼长0.9-1.4厘米,红色,具3钝齿,一侧浅裂;花冠管与花萼近等长,裂片长圆形,长1.3-1.7厘米,宽5毫米;唇瓣近圆形至长圆形,长约2.2厘米,宽1.8-2.2厘米,顶端具2枚尖齿,中脉淡黄色,近基部两侧有少数紫色条纹;侧生退化雄蕊红色,羊角状,长约6毫米,疏被短腺毛;雄蕊长2.8厘米,花药长8-9毫米,药隔附属体舌状,长2毫米;子房密被粗毛。蒴果球形,直径0.9-1.4厘米,被毛,顶端具宿存的花被管。花期:5-6月;果期:10-11月。
分布(Distribution):产广西,生于山坡林中。
引自中国植物志英文版:FOC Vol. 24 Page 343 
Alpinia polyantha D. Fang, Acta Phytotax. Sin. 16(4): 78. 1978.
多花山姜 duo hua shan jiang| Zingiberaceae  | Alpinia
Rhizomes creeping, thick. Pseudostems to 6 m. Leaf sheath longitudinally rough lined, densely tomentose; ligule 2-cleft, 1--2 cm, tomentose; petiole 1--9 cm, tomentose; leaf blade lanceolate or elliptic, to 1 m × 25 cm, glabrous or abaxially tomentose, base cuneate, margin long ciliate, apex acuminate. Panicles erect, 35--60 × 7--9 cm, tomentose; branches 0.5--3 cm, 5--8-flowered; involucral bracts oblong-lanceolate, ca. 27 × 5.5 cm; bracteoles oblong to oblanceolate, ca. 1.2 cm × 3--7 mm, membranous. Pedicel 1--10 mm. Calyx red, 0.9--1.4 cm, split on 1 side, apex 3-toothed. Corolla tube equaling calyx; lobes oblong, 1.3--1.7 cm × ca. 5 mm. Lateral staminodes red, horn-shaped, ca. 6 mm. Labellum suborbicular to oblong, ca. 2.3 × 1.8--2.2 cm, midvein yellowish, with a few purple lines on both sides near base, apex acute, 2-toothed. Stamen ca. 2.8 cm; anther 8--9 mm; connective appendage tongue-shaped, ca. 2 mm. Ovary densely hirsute. Capsule globose, 0.9--1.4 cm in diam., hairy, apex with persistent calyx. Fl. May--Jun, fr. Oct--Nov. 2 n = 48*.
* Forests. Guangxi, Yunnan.
Medicinal.
 




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