- n Onopordon a genus of Eurasian herbs of the family Compositae with prickly foliage and large purplish flowers
Century Dictionary and Cyclopedia
- n onopordon A genus of composite plants of the tribe Cynaroideæ and the subtribe Carduineæ, characterized by the pilose filaments and foveolate receptacle. There are about 15 species, natives of Europe and the Mediterranean region. They are prickly and usually cottony herbs, with deep-cut and spiny leaves, and large terminal heads of purplish or white flowers. O. Acanthiurn is the common cotton-thistle or Scotch thistle, in some old books called argentine or argentine thistle, from its silvery whiteness. See cotton-thistle, and Scotch thistle (under thistle).