How about "liberally encroaching? ., And re the definition, Boyce-- can you specify the legal parameters so we can learn how not to use the term? ----- Original Message ----- From: "Boyce Tankersley" <btankers@chicagobotanic.org> To: "Pacific Bulb Society" <pbs@lists.ibiblio.org> Sent: Wednesday, April 07, 2010 3:35 PM Subject: Re: [pbs] Looking for other blue Hyacinthaceae - ID needed > Hi All: > > Please be careful when using the term 'invasive'. It carries legally > defined/regulatory connotations linked to documented negative impacts on > native plants in undisturbed natural areas. > > So far, our experience at CBG is that Scilla sibirica does not invade > natural habitats. It does however, persist around old farmsteads and it > does reseed in gardens and other cultivated (roadsides for instance) > areas, but not the natural habitats. > > I believe Mary Sue covered a similar topic (invasive versus persistent > plants) a few weeks ago regarding the California region. > > Many thanks, > > Boyce Tankersley > Director of Living Plant Documentation > Chicago Botanic Garden > 1000 Lake Cook Road > Glencoe, IL 60022 > tel: 847-835-6841 > fax: 847-835-1635 > email: btankers@chicagobotanic.org > > The S. sibirica is invasive in the Chicago area UZDA Z 5a--on its way > to 6 > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/