[1] : The Collaborative International Dictionary of English v.0.48

ragwort \rag"wort`\ ra^g"w^urt`, n. bot.
   a name given to several species of the composite genus
   senecio.
   1913 webster

   note: senecio aureus is the golden ragwort of the united
         states; senecio elegans is the purple ragwort of
         south africa.
         1913 webster
see also:
senecio senecio aureus senecio elegans 

[2] : WordNet (r) 2.0

ragwort
     n 1: widespread european weed having yellow daisylike flowers;
          sometimes an obnoxious weed and toxic to cattle if
          consumed in quantity syn: tansy ragwort, ragweed, benweed,
           senecio jacobaea
     2: american ragwort with yellow flowers syn: butterweed, senecio
        glabellus
see also:
tansy ragwort ragweed benweed senecio jacobaea butterweed senecio glabellus 

Ragwort >> R Words
Ragwort, definition of term: Ragwort
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