The Collaborative International Dictionary of English v.0.48:

Anthemis \An"the*mis\, n. [Gr. 'anqemi`s, equiv. to 'a`nqos
   flower; an herb like our chamomile.] (Bot.)
   Chamomile; a genus of composite, herbaceous plants.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Anthemis
    n 1: dog fennel [syn: Anthemis, genus Anthemis]