The Collaborative International Dictionary of English v.0.48:

Malva neglecta \Malva neglecta\ prop. n. (Bot.)
   The species name of the common mallow, an annual Old World
   plant with clusters of pink or white flowers; naturalized in
   U.S..
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

Malva neglecta
    n 1: annual Old World plant with clusters of pink or white
         flowers; naturalized in United States [syn: common
         mallow, Malva neglecta]