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
同义词：trillium??/??wood lily
common American spring-flowering woodland herb having sheathing leaves and an upright club-shaped spadix with overarching green and purple spathe producing scarlet berries
同义词：jack-in-the-pulpit??/??Indian turnip??/??Arisaema triphyllum??/??Arisaema atrorubens
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