balsamroot

from WordNet (r) 3.0 (2006)

balsamroot
    n 1: a plant of the genus Balsamorhiza having downy leaves in a
         basal rosette and yellow flowers and long balsam-scented
         taproots

from The Collaborative International Dictionary of English v.0.48

balsamroot \balsamroot\ n.
   a plant of the genus {Balsamorhiza} having white-downy leaves
   in a basal rosette and yellow flowers and long balsam-scented
   taproots.
   [WordNet 1.5]