The Collaborative International Dictionary of English v.0.48:

Globeflower \Globe"flow`er\, n. (Bot.)
   (a) A plant of the genus Trollius (T. Europ[ae]us), found
       in the mountainous parts of Europe, and producing
       handsome globe-shaped flowers.
   (b) The American plant Trollius laxus.
       [1913 Webster]

   Japan globeflower. See Corchorus.
      [1913 Webster]

WordNet (r) 3.0 (2006):

globeflower
    n 1: any of several plants of the genus Trollius having globose
         yellow flowers [syn: globeflower, globe flower]