turtlehead means A white turtlehead, an American perennial herb (Chelone glabra) with white flowers. Lexicurio rates it Sui generis — a strength score of 85 out of 100.
Etymology
From turtle + head, from the shape of the flower.
noun
- A white turtlehead, an American perennial herb (Chelone glabra) with white flowers.
- Any of various other members of the genus Chelone.