最近,我们发现番泻叶的一种伪品,经鉴定为夹竹桃科植物罗布麻Apocynum vene-tum L.的干燥叶。现简介如下,供鉴别番泻叶时参考。1.罗布麻叶系夹竹桃科植物罗布麻Apocynum venetum L.的干燥叶。性状鉴别:叶片呈椭圆状披针形或卵状披外形,长1—2.5—5cm,宽0.5—1.2—2cm;上表面淡绿色或浅棕色,下表面灰绿色或浅棕色,先端钝,项部有小芒尖,基部楔形或钝 Recently, we have found a fake product of senna leaf that has been identified as the dry leaf of Apocynum vene-tum L. in the Apocynaceae family. The introduction is as follows, for reference when identifying senna leaf. 1. Dry leaves of Apocynum venetum L. Apocynum venetum. Identification of traits: The leaves are elliptical-shaped lanceolate or ovate-shaped, 1. 5-2.5cm long, 0.5-1.2-2cm wide; the upper surface is light green or light brown, the lower surface is grayish green or light brown, and the tip is blunt. Ministry with small cusp tip, base cuneate or blunt