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Member of either of two genera of poisonous herbaceous plants, (buttercup family) and (family Melanthiaceae). Some are grown as garden ornamentals. consists of about 20 species of perennial plants native to Eurasia; most are nearly stemless, with thick roots and long-stalked, divided leaves and showy flowers. contains about 2530 species, better called false hellebores, native widely to damp areas of the Northern Hemisphere. They have simple leaves and clusters of small flowers.
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