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A perennial cruciferous herb (Nasturtium officinale) growing usually in clear running or spring water. The leaves are pungent, and used for salad and as an antiscorbutic.

A European poisonous umbelliferous plant (Enanthe fistulosa) with large hollow stems and finely divided leaves.

A poisonous umbelliferous plant (Cicuta virosa) of Europe; also, any one of several plants of that genus.

Any plant of the aquatic umbelliferous genus Sium, poisonous herbs with pinnate or dissected leaves and small white flowers.

A cruciferous plant (Nasturtium sylvestre) with small yellow flowers.

marked by a cough recurring each winter. -- Winter cress (Bot.), a yellow-flowered cruciferous plant (Barbarea vulgaris). -- Winter crop, a crop which will bear the winter, or which may be converted into fodder during the winter. -- Winter duck. (Zoöl.) (a) The pintail. (b) The old squaw. -- Winter egg (Zoöl.), an…

An herbaceous cruciferous plant (Isatis tinctoria). It was formerly cultivated for the blue coloring matter derived from its leaves.

rty of expelling worms from the stomach and intestines. Wormseed mustard, a slender, cruciferous plant (Erysinum cheiranthoides) having small lanceolate leaves.

An umbelliferous plant (Carum Gairdneri); also, its small fleshy roots, which are eaten by the Indians from Idaho to California.

iron; copper pyrites. See Chalcopyrite. -- Yellow cress (Bot.), a yellow-flowered, cruciferous plant (Barbarea præcox), sometimes grown as a salad plant. -- Yellow dock. (Bot.) See the Note under Dock. -- Yellow earth, a yellowish clay, colored by iron, sometimes used as a yellow pigment. -- Yellow fever (Med.), a…