- Any of several plants of the genusErythronium, having leaves with reddish blotches and nodding, colorful, solitary, lilylike flowers on leafless stems. Also called adder's-tongue ,trout lily 赤莲，犬齿赤莲：一种在无叶茎上开多彩，单瓣、莲状花猪牙花属 植物，叶带淡红色斑点 也作 adder's-tongue,trout lily