- an E North American yellowish-brown, scaly, leafless plant (Conopholis americana) of the broomrape family, parasitic on the roots of some trees, esp. oaks
- a purple trillium (Trillium erectum)
Any of several North American plants, especially:
a. A parasitic plant (Conopholis americana) having a scaly brownish stem and a conelike inflorescence of tubular yellowish flowers.
b. A trillium (Trillium erectum) having strong-smelling purple to yellow flowers.