多裂棕竹Rhapis multifida

中文名(Chinese Name):多裂棕竹
学名(Scientific Name):Rhapis multifida Burret
英文名(English Common Name):
别名(Chinese Common Name):金山棕
异名(Synonym):
科属(Family & Genus):棕榈科(Palmae)棕竹属
形态特征(Description):丛生灌木,高2-3米甚至更高,带鞘茎直径1.5-2.5厘米,无鞘茎直径约1厘米。叶掌状深裂,扇形,长28-36厘米,裂片裂至基部2.5-6厘米处,侧边的裂得较深,裂片16-20片(最多达30片),线状披针形,每裂片长28-36厘米,宽1.5-1.8厘米,通常具2条明显的肋脉,先端变狭,具2-3(-4)短裂片,边缘及肋脉上具细锯齿,横小脉明显;叶柄较长,长20-40厘米(一般栽培条件下较长),两面凸圆,边缘几乎是锐尖的,顶端具小戟突,卵圆形至半圆形,被淡黄褐色或深褐色的绵毛;叶鞘纤维褐色,整齐排列,较粗壮。花序二回分枝,长40-50厘米,花序梗上的佛焰苞约2个,长约13厘米,扁管状,顶端具三角形的尖,分枝上的佛焰苞狭管状,稍扁,顶端一侧延伸为三角形的尖;分枝极张开,被暗褐色鳞秕,结果小枝螺旋状排列,稀疏,长约5-8厘米。花未见。果实球形,直径9-10毫米,熟时黄色至黄褐色,外果皮稍具小颗粒;果被高约7毫米,其中花萼高2.5毫米,具3个三角形裂片,花萼与花冠之间的花冠管为实心的狭圆柱体,高约6-7毫米,上部稍膨大,结果时花冠扁平,裂片宽卵形,略具尖。种子略为半球形,宽6毫米,高5毫米,种脊面扁平,具凹穴,胚乳均匀,具深的凹穴,胚侧生于种脊对面的中部偏下。果期11月至翌年4月。
分布(Distribution):产广西西部及云南东南部,现广为栽培。
用途(Use):可作庭园绿化材料。
引自中国植物志英文版:FOC Vol. 23 Page 146, 147   
Rhapis multifida Burret, Notizbl. Bot. Gart. Berlin-Dahlem. 13: 588. 1937.
多裂棕竹 duo lie zong zhu| Arecaceae  | Rhapis
Stems clustered, rhizomatous, forming colonies, to 2.5 m tall, to 2.5 cm in diam., covered with persistent, fibrous leaf sheaths. Leaf sheaths with coarse, black or brown fibers producing a diagonal mesh; ligules persistent; blades not split to base, divided into 14-23 linear segments, these with curved sides and ± pointed apices, to 45 × 2 cm. Inflorescences borne among leaves, branched to 3 orders; bracts tubular, sheathing; rachis to 56 cm; rachillae 3.5-10 cm, hairy; male flowers not seen; female flowers to 4.5 mm. Fruits developing from 1 carpel, yellow, globose, to 0.8 cm in diam., borne on ca. 5 mm stalks.
● Lowland and montane forests on rocky slopes; below 1500 m. Guangxi, E Yunnan [?Vietnam].
This species is planted as an ornamental.
多裂棕竹Rhapis multifida

多裂棕竹Rhapis multifida

多裂棕竹Rhapis multifida(责任编辑:徐晔春)

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