I.pseudocorus

I was pleased to see more information on the invasiveness of pseudocorus 
appearing but I would still like to know of locations where it has actually 
spread iand pushed out native species.  Most of the information that I have 
been able to find suggests that it will grow in the wild but does not really 
spread.  The one exception is a nature reserve in eastern British Columbia 
where it is clearly invasive.

My real interest at the moment is finding confirmation on a rumour that the 
State of Maryland has classed pseudocorus as a protected species!  Does 
anyone have a reference that could confirm this or a telephone number of the 
right State government department which will allow me to check?  If so, I 
would be grateful to have this information before next weekend as I am 
giving a talk to IUCN World Conservation Conference advocating greater 
international cooperation on invasive plants and wish to use pseudocorus as 
an example.

Ian E. Efford, Ottawa
avocet@worldlink.ca

PS  Over most of northern N.Am. purple loosestiffe is very invasive and is 
damaging both wet agricultural land and eliminating a great deal of the 
natural biodiversity of plants and animals in wetlands.  There has been a 
lot of research undertaken on this topic on both sides of the border.  
Beekeepers were spreading this species deliberately as bees that feed on it 
produce a large amount of honey.  Now they are asking for it to be destroyed 
(basically impossible) as the quality of the honey is so poor.  
Ian E. Efford
avocet@worldlink.ca
Ottawa zone 3
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