(n) European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery; all parts extremely poisonous, Syn. hemlock water dropwort, Oenanthe crocata
[はるのななくさ, harunonanakusa] (exp) (See 秋の七草) seven vernal flowers (Java water dropwort, shepherd's purse, Jersey cudweed, common chickweed, Japanese nipplewort, turnip, and daikon)