water dropwort

noun

1

: a plant of the genus Oenanthe

especially : a European poisonous herb (O. crocata) having tuberous roots, a yellow juice that stains the skin, yellow flowers, and foliage resembling that of celery compare water fennel

2

: a leafless herb (Oxypolis canbyi) of the southeastern U.S. with hollow leaflike stems and slender compound umbels of tiny white flowers

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