马鞭草是民间常用的中草药，又名紫顶龙芽、狗牙草、风颈草、红藤草等。马鞭草为多年生植物，用全草或带根全尊。7－10月开花期时采收，晒干。以干燥、色青绿、带花穗、无根及杂质者为佳。全国各地均有分布。马鞭草性味苦凉，入肝、脾经。功效清热解毒，活血散瘀，利水消肿。中 Verbena is a common Chinese herbal medicine, also known as purple top dragon buds, dog grass, wind neck grass, red rattan grass and so on. Verbena is a perennial plant that is fully or fully rooted. Harvested during the flowering period from July to October and dried. It is better to use dry, colored greenish green, spikes, roots and impurities. It is distributed throughout the country. Verbena has a bitter, cold taste and enters the liver and spleen. Efficacy Qingrejiedu, blood circulation, water swelling. in