[tur-tl-hed] 
| any of several North American plants belonging to the genus Chelone, of the figwort family, having opposite, serrated leaves and spikes of purple or white, two-lipped flowers. |
| tur·tle·head (tûr'tl-hěd') n. 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. Also called snakehead. [From the shape of its flowers.] |
tlˌhɛd