celandine

(noun) North American annual plant with usually yellow or orange flowers; grows chiefly on wet rather acid soil. Synonyms: jewelweed, lady's earrings, orange balsam, touch-me-not, Impatiens capensis.

(noun) perennial herb with branched woody stock and bright yellow flowers. Synonyms: greater celandine, swallowwort, swallow wort, Chelidonium majus.