五星花Pentas lanceolata (Forsk.) K. Schum.
五星花Pentas lanceolata (Forsk.) K. Schum.
1. 五星花（中国种子植物科属辞典）图版103: 6-9
Pentas lanceolata (Forsk.) K. Schum. in Engl. u. Prantl, Nat. Pflanzenfam. IV (4): 29. 1891.——Ophiorrhiza laceolata Forsk. Fl. Aegypt. Arab. 42. 1775. ——Pentas carnea Benth. in Hook. Bot. Mag. t. 4086. 1844.
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。
原产非洲热带和阿拉伯地区；我国南部有栽培。
本种为一常见观赏植物，常因花的颜色不同而分为多个变种。
《Flora of China》 Vol. 19 (2011)
Pentas lanceolata (Forssk?l) Deflers Voy. Yemen. 142. 1889.
五星花 wu xing hua
Ophiorrhiza lanceolata Forssk?l, 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.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.
别名：Egyptian starcluster;繁星花;
科名：茜草科 Rubiaceae
属名：五星花属 Pentas
1. 五星花（中国种子植物科属辞典）图版103: 6-9
Pentas lanceolata (Forsk.) K. Schum. in Engl. u. Prantl, Nat. Pflanzenfam. IV (4): 29. 1891.——Ophiorrhiza laceolata Forsk. Fl. Aegypt. Arab. 42. 1775. ——Pentas carnea Benth. in Hook. Bot. Mag. t. 4086. 1844.
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。
原产非洲热带和阿拉伯地区；我国南部有栽培。
本种为一常见观赏植物，常因花的颜色不同而分为多个变种。
《Flora of China》 Vol. 19 (2011)
Pentas lanceolata (Forssk?l) Deflers Voy. Yemen. 142. 1889.
五星花 wu xing hua
Ophiorrhiza lanceolata Forssk?l, 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.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.