Legacy bulbs-desirable plants or weeds (Alberto Castillo)

Boyce Tankersley btankers@chicagobotanic.org
Fri, 19 Mar 2010 07:06:03 PDT
Yes, this one is a thug in the Chicago area as well. A cultivar with
double the normal number of petals/sepals appears to be the only safe
one to grow (dysfunctional anthers and stigma). 

We removed all Iris pseudacorus germplasm from the collections 3 years
ago and still find plants along our shorelines from apparently 2
sources; nursery grown plants sold "in the green" or as dormant pots
under the name Iris virginica var. shrevei and from seeds floating down
the Skokie River.

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

"Not only does Iris pseudacorus  
disperse by freshwater, it is also at least moderately saltwater  
tolerant. In my area, it comes down the Columbia River and out to the  
ocean beaches, along the beaches, where we find seed pods and seeds  

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