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有些地区将泡桐花当作凌霄花使用,二者虽外形相似,但来源功效不同,故不能相互替代。凌霄花为紫薇科植物紫薇Campsis grandi-flora(Thunb.)Loisel.的花,有凉血、破瘀通经的功效。泡桐花为玄参科植物泡桐Paulow-nia fortunei(Seem.)Hemsl.和同属其它植物的花,有消肿毒、祛风湿、止痛之功。今列举二者的性状及显微鉴别特征如下,以资区别。凌霄花干燥、皱缩。有花冠及花萼。花冠红棕色,管状,水浸铺开后呈漏斗状,先端五裂,裂片半园形,下部呈管状。花萼暗棕色,
In some areas, paulownia flowers are used as a gardenia flower. Although the two are similar in shape, they have different source effects and cannot be substituted for each other. Ling Xiaohua is a flower of the crape myrtle Campsis grandi-flora (Thunb.) Loisel. It has the effect of cooling blood and breaking through. Paulownia flower is a flower of Paulownia Paulow-nia fortunei (Seem.) Hemsl. and other plants belonging to the family Scrophulariaceae. It has the functions of swelling poison, rheumatism, and pain relief. The traits and microscopic identification characteristics of the two listed here are as follows. Ling Xiaohua dry, shrinking. Corolla and flower buds. The corolla is reddish-brown, tubular, funnel-shaped after dipping into the water, and is accommodating five lobes. The lobes are semi-circular and the lower part is tubular. Calyx dark brown,