Aeschynanthus radicans is a vine-like plant native to the humid tropics of the Malay Peninsula south to Java. It is an epiphyte or lithophyte growing to 1.5 m tall, with leathery, green leaves that are 4–8 cm long, ovate to lanceolate, opposite or whorled. The flowers are terminal, tubular, 5-7.5 cm long, with the upper lobes shorter than the lower. They are usually scarlet with yellow throats. The common name Lipstick plant, shared with other plants of the genus Aeschynanthus, comes from the scarlet flowers that open from buds resembling tubes of lipstick.