Milk Thistle (Silybum marianum) on May 28, 2016
Submitter has sample
EDRR Status: Population assessed
Description of specimen
Thistle with white marbled leaves
Commentary
Expert Reviewer
Samuel Leininger
Clackamas Soil and Water Conservation District
4-County Cooperative Weed Management Area
Columbia Gorge Cooperative Weed Management Area
I wanted to thank you for reporting this infestation of Blessed milkthistle. This species is a high priority for control and management within the Portland Metro region. We will be working with the affected landowner to control this infestation, and we greatly appreciate your time and consideration in documenting this infestation.
To learn more about Blessed milkthistle, please review our Blessed Milkthistle Best Management Practices page for more information.
http://weedwise.conservationdistrict.org/weeds/bmp-blessed-milkthistle-silybum-marianum
Once again thank you for your time and consideration and please do not hesitate to call if you have additional questions.
Sincerely,
Samuel Leininger
WeedWise Program Manager
Clackamas Soil & Water Conservation District
221 Molalla Ave. Suite 102
Oregon City, OR 97045
503-210-6006
sleininger@conservationdistrict.org
Samuel Leininger
June 10, 2016, 2:43 a.m.