Poin·set·ti·a n. Bot. A Mexican shrub (Euphorbia pulcherrima) with very large and conspicuous vermilion bracts below the yellowish flowers.
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Euphorbia pulcherrima
n : tropical American plant having poisonous milk and showy
tapering usually scarlet petallike leaves surrounding
small yellow flowers [syn: poinsettia, Christmas star,
Christmas flower, lobster plant, Mexican flameleaf,
painted leaf]