n. 延龄草

[ noun ]
any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower
<noun.plant>

Trillium \Tril"li*um\, n. [NL.; cf. L. trilix triple-woven,
triple.] (Bot.)
A genus of liliaceous plants; the three-leaved nightshade; --
so called because all the parts of the plant are in threes.