hyoscyamus : Idioms & Phrases
genus hyoscyamus
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noun genus of poisonous herbs: henbane
Hyoscyamus.
WordNet
hyoscyamus muticus
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noun poisonous herb whose leaves are a source of hyoscyamine
Egyptian henbane.
WordNet
hyoscyamus niger
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noun poisonous fetid Old World herb having sticky hairy leaves and yellow-brown flowers; yields hyoscyamine and scopolamine
henbane; black henbane; stinking nightshade.