Here are a couple of SF Chronicle articles on Oxalis: URL's included if the links don't work. Lizw * * Keeping digging, pulling out pesky weed oxalis <http://sfgate.com/cgi-bin/article.cgi/…> http://sfgate.com/cgi-bin/article.cgi/… All about oxalis <http://sfgate.com/cgi-bin/article.cgi/…> http://sfgate.com/cgi-bin/article.cgi/… >