lysimachia

from WordNet (r) 3.0 (2006)

Lysimachia
    n 1: loosestrife: a cosmopolitan genus found in damp or swampy
         terrain having usually yellow flowers; inclined to be
         invasive [syn: {Lysimachia}, {genus Lysimachia}]

from The Collaborative International Dictionary of English v.0.48

Lysimachia \Lysimachia\ n.
   1. a cosmopolitan genus of plants, including some of the
      loosestrifes, found in damp or swampy terrain having
      usually yellow flowers; they are inclined to be invasive.

   Syn: genus {Lysimachia}.
        [WordNet 1.5]