any of a genus (Trillium) of perennial plants of the lily family, having an erect stem that bears a whorl of three leaves and a single flower with three green sepals and three petals that change color as they mature
Origin of trilliumModern Latin from Classical Latin tri-, three
Any of various plants of the genus Trillium, of North America, the Himalaya Mountains, and eastern Asia, having a whorl of three leaflike bracts and a usually white, reddish, or yellow three-petaled flower. Also called birthroot . Also called wake-robin .
Origin of trilliumNew Latin Trillium genus name probably from Swedish trilling triplet (from its three leaflike bracts) from obsolete Swedish tri three from Old Swedish thrīr ; see trei- in Indo-European roots.
- Any of several perennial flowering plants, of the genus Trillium, having flowers with three petals