My first thought is Redeem.
BUT, try this:
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4ADBF_enUS281US281&q=creeping+charlie
BUT, try this:
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4ADBF_enUS281US281&q=creeping+charlie