bittercress(n = noun.plant) bitter cress - any of various herbs of the genus Cardamine, having usually pinnate leaves and racemes of white, pink or purple flowers; cosmopolitan except Antarctic;
is a kind of cress, cress plant
is a member of cardamine, genus cardamine
has particulars: cardamine pratensis, cuckoo flower, cuckooflower, lady's smock, meadow cress, cardamine bulbifera, coral-root bittercress, coralroot, coralwort, dentaria bulbifera, cardamine diphylla, crinkle-root, crinkle root, crinkleroot, dentaria diphylla, pepper root, toothwort, cardamine bulbosa, spring cress, cardamine douglasii, purple cress
any of various herbs of the genus Cardamine, having usually pinnate leaves and racemes of white, pink or purple flowers; cosmopolitan except in the Antarctic. [WordNet 1.5]