Matricaria

from WordNet (r) 3.0 (2006)

Matricaria
    n 1: chiefly Old World strong-smelling weedy herbs; comprises
         plants sometimes included in other genera: e.g. Tanacetum;
         Tripleurospermum [syn: {Matricaria}, {genus Matricaria}]

from The Collaborative International Dictionary of English v.0.48

Matricaria \Matricaria\ prop. n.
   A genus of chiefly Old World strong-smelling weedy herbs; it
   comprises plants sometimes included in other genera, such as
   {Tanacetum} and {Tripleurospermum}.

   Syn: genus {Matricaria}.
        [WordNet 1.5]