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繁星花Pentas lanceolata

时间:2013-11-08 12:04来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):繁星花 学名( Scientific Name ): Pentas lanceolata (Forssk.) Deflers 英文名( English Common Name ): Egyptian starcluster 别名( Chinese Common Name ): 五星花 异名 ( Synonym ): Pentas carnea Benth. Mussae
中文名(Chinese Name):繁星花
学名(Scientific Name):Pentas lanceolata (Forssk.) Deflers
英文名(English Common Name):Egyptian starcluster
别名(Chinese Common Name):五星花
异名Synonym):Pentas carnea Benth.  Mussaenda aegyptiaca Poir.  Neurocarpaea lanceolata (Forssk.) R.Br.  Pseudomussaenda lanceolata (Forssk.) Wernham  Manettia lanceolata (Forssk.) Vahl
科属Family & Genus):茜草科(Rubiaceae)五星花属
形态特征Description):直立或外倾的亚灌木,高30-70厘米,被毛。叶卵形、椭圆形或披针状长圆形,长可达15厘米,有时仅3厘米,宽达5厘米,有时不及1厘米,顶端短尖,基部渐狭成短柄。聚伞花序密集,顶生;花无梗,二型,花柱异长,长约2.5厘米;花冠淡紫色,喉部被密毛,冠檐开展,直径约1.2厘米。花期夏秋。
分布(Distribution):原产非洲热带和阿拉伯地区,我国各地有栽培。
用途(Use):
引自中国植物志英文版:FOC Vol. 19 Page 290   
Pentas lanceolata (Forsskål) Deflers, Voy. Yemen. 142. 1889.
五星花 wu xing hua| Rubiaceae  | Pentas
Ophiorrhiza lanceolata Forsskål, Fl. Aegypt.-Arab. 42. 1775; Pentas carnea Bentham.
Subshrubs, 30-70 cm tall; branches quadrangular, moderately to densely pilosulous to villous often becoming glabrescent with age. Leaves opposite; petiole 0.5-3 cm, pilosulous to villous; blade drying papery, oblong-lanceolate to ovate, 5-14 × 2-5.5 cm, adaxially scabrous or villous to glabrescent, abaxially densely villous or hirtellous at least along principal veins, base cuneate to obtuse, apex acute or shortly acuminate; secondary veins 8-10 pairs; stipules truncate to broadly rounded, 1.5-2 mm, villous, bristles 1-5, 1-4 mm. Inflorescence densely pilosulous to villous; peduncle 3-12 mm; branched portion congested-cymose often becoming lax, 1.5-4 × 1.5-4 cm; bracts narrowly triangular to linear, 0.5-1.5 mm. Flowers sessile or subsessile, distylous. Calyx densely hirtellous or villous; ovary portion subglobose to obovoid, ca. 1 mm; limb deeply lobed; lobes narrowly oblanceolate to elliptic or narrowly spatulate, 2-8 mm, usually unequal on an individual flower with nearly this entire size range found on some flowers, acute. Corolla pale purple to pink, red, white, or yellow, salverform, sparsely hirtellous to glabrescent outside; tube slender except rather abruptly swollen in throat in long-styled form (around stamens), 17-20 mm, densely barbate in throat; lobes elliptic or oblong-lanceolate, 3-4 mm, acute to obtuse. Capsules obovoid, 4-6 × 4-6 mm, stiffly papery to woody, with beak 1-2 mm tall; seeds 0.5-1 mm. Fl. Jul-Sep.
Cultivated in gardens in S China; sea level to 1500 m. Fujian, Guangdong [native to Africa (Democratic Republic of Congo, Ethiopia, Kenya, Rwanda, Sudan, Tanzania, Uganda); commonly cultivated worldwide].
Cultivated plants of Pentas lanceolata are usually all long-styled and usually do not set fruit. They are variable in flower color, and new varieties and colors continue to be developed.
 




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