cow parsnip Meaning, Definition & Usage

  1. noun tall coarse plant having thick stems and cluster of white to purple flowers
    Heracleum sphondylium; hogweed.

WordNet

Cow" pars`nip noun
Definitions
  1. (Bot.) A coarse umbelliferous weed of the genus Heracleum (H. sphondylium in England, and H. lanatum in America).

Webster 1913