Definition of "bittercress" []

• Barbarea vulgaris, a biennial herb native to Europe. (noun)
• Any plant of the Cardamine genus, especially Cardamine bulbosa and Cardamine hirsuta. (noun)

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• "I think your unknown weed may be hairy bittercress Cardamine hirsuta."
• "Among English weeds, the little bittercress that grows on dry walls and hedge-banks forms an excellent example of the same device."
• "I'm not guaranteeing your mouth will start watering at the sight of nettles or bittercress which author Doug Benoliel calls a "tasty jewel", but you may well learn, with the help of Benoliel's drawings and clear descriptions, how to identify which plants are poisonous and which are safe to eat."