Any of several perennial North American herbs of the genus Chelone, especially C. glabra, having a white or pink bilabiate corolla with a bearded lower lip.

• 龟头花几种产于北美洲的龟花属的多年生草木植物的一种，尤指龟头花，花冠呈白色或粉红色，下部呈披针形