Turtlehead is also known as balmony, bitter herb, codhead, fish mouth, shellflower, snakehead, snake mouth and turtle bloom.
Its scientific name is Chelone glabra. In Greek mythology, there was a nymph named Chelone who insulted the gods; in punishment, she was turned into a turtle. The flowers of this plant are said to look like the heads of turtles. In Latin glabra means smooth, because of the texture of this plant’s stems and leaves.
I found these examples on the Ohio Erie Canal Towpath. Turtlehead is usually found along stream banks on damp ground and typically grows to a height of 2 to 3 feet. Turtlehead serves as the primary host plant for the very rare Baltimore Checkerspot Butterfly, Maryland’s official state insect.
Its flowers are in a densely packed spike at the top of the main stem. It has narrow, sharp-toothed, opposite leaves.
This member of the Figwort/Snapdragon family has distinctive, two lipped tubular flowers are 1 to 1-1/2 inches long. The upper lip arches over the lower lip, creating the resemblance to a turtle’s head.