Synonyms for Wake-robin (same or very similar meaning)
WordNet sense 1 (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):
trillium, wood lilyWordNet sense 2 (common American spring-flowering woodland herb having sheathing leaves and an upright club-shaped spadix with overarching green and purple spathe producing scarlet berries):
jack-in-the-pulpitFrom the ODE community, based on WordNetadd/edit