One of the highly invasive ones is Oxalis pes-caprae the whole Mediterranean near the coast is covered with this weed http://en.wikipedia.org/wiki/Mediterranean_Sea/ see: http://en.wikipedia.org/wiki/Oxalis_pes-caprae/ Roland 2010/11/23 AW <awilson@avonia.com>: > A few, but only a few, oxalis species are known to be weedy. Avoid them and R de Boer La Maugardiere 1 F 27260 EPAIGNES FRANCE Tel./Fax 0033-232-576-204 Email: bulborum@gmail.com