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The Collaborative International Dictionary
Heracleum lanatum

Masterwort \Mas"ter*wort`\, n. (Bot.)

  1. A tall and coarse European umbelliferous plant ( Peucedanum Ostruthium, formerly Imperatoria).

  2. The Astrantia major, a European umbelliferous plant with a showy colored involucre.

  3. Improperly, the cow parsnip ( Heracleum lanatum).

Heracleum lanatum

Cow parsnip \Cow" pars`nip\ (-n?p). (Bot.) A coarse umbelliferous weed of the genus Heracleum ( Heracleum sphondylium in England, and Heracleum lanatum in America).