红花羊蹄甲Bauhinia blakeana Dunn

别名：紫荆;蓝花树;艳紫荆;红花紫荆;洋紫荆;紫荆花;羊蹄甲;嚜旭;

科名：豆科 Leguminosae

属名：羊蹄甲属 Bauhinia

《中国植物志》第39卷156页
  2.红花羊蹄甲（广州常见经济植物）图版50: 1-2
  Bauhinia blakeana Dunn in Journ. Bot. 46: 325. 1908;侯宽昭等, 广州植物志314, 图168. 1956; de Wit in Reinwardtia 3: 397. 1956.
  乔木；分枝多，小枝细长，被毛。叶革质，近圆形或阔心形，长8.5-13厘米，宽9-14厘米，基部心形，有时近截平，先端2裂约为叶全长的1/4-1/3，裂片顶钝或狭圆，上面无毛，下面疏被短柔毛；基出脉11-13条；叶柄长3.5-4厘米，被褐色短柔毛。总状花序顶生或腋生，有时复合成圆锥花序，被短柔毛；苞片和小苞片三角形，长约3毫米；花大，美丽；花蕾纺锤形；萼佛焰状，长约2.5厘米，有淡红色和绿色线条；花瓣红紫色，具短柄，倒披针形，连柄长5-8厘米，宽2.5-3厘米，近轴的1片中间至基部呈深紫红色；能育雄蕊5枚，其中3枚较长；退化雄蕊2-5枚，丝状，极细；子房具长柄，被短柔毛。通常不结果花期全年，3-4月为盛花期。
  美丽的观赏树木，花大，紫红色，盛开时繁英满树，为广州主要的庭园树之一。世界名地广泛栽植。

《Flora of China》 Vol. 10 (2010)
Bauhinia ×blakeana  ×blakeana Dunn J. Bot. 46: 325. 1908.
红花羊蹄甲   hong hua yang ti jia
Trees. Branches numerous; branchlets slender, pubescent. Petiole 3.5-4 cm, brownish pubescent; leaf blade orbicular or suborbicular, 8.5-13 × 9-14 cm, leathery, abaxially puberulent, adaxially glabrous, primary veins 11-13, base cordate or trun-cate, apex bilobed to 1/4-1/3, lobes rounded or narrowly rounded. Inflorescence racemose, terminal or axillary, or sev-eral racemes together forming a panicle, pubescent; bracts and bracteoles triangular, ca. 3 mm. Floral buds fusiform. Hypan-thium tubular. Calyx spathe ca. 2.5 cm, with greenish or light reddish ridges. Petals purplish, lanceolate, 5-8 × 2.5-3 cm, shortly clawed. Fertile stamens 5, with 3 longer. Staminodes 2-5, threadlike. Ovary prominently stalked, pubescent. Legume not produced. Fl. Nov-Mar.
Frequent in Fujian, Guangdong, Guangxi, Taiwan, and Yunnan [widely cultivated].
This is a hybrid between Bauhinia purpurea and B. variegata. First collected from a garden in Hong Kong, it is now widely cultivated in the tropics as an ornamental tree.This is a hybrid between Bauhinia purpurea and B. variegata. First collected from a garden in Hong Kong, it is now widely cultivated in the tropics as an ornamental tree.