The Collaborative International Dictionary of English v.0.48:

Creeping Charlie \Creep"ing Char"lie\
   The stonecrop (Sedum acre).
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

creeping Charlie
    n 1: a loosestrife vine [syn: moneywort, creeping Jenny,
         creeping Charlie, Lysimachia nummularia]