CDA - California Department of Food and Agriculture (CDA)
Cirsium arvense (L.) Scop.
United States, Colorado, Jefferson, Ranson/Edwards Homestead Open Space Park. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 80 m. northwest; 16.3 km. north northwest of the GNIS location of Golden. Mixed grasses and forbs, just below the ponderosa pine zone. Lightly grazed in 2016. Colorado Noxious Weed List B. Elev 1935 m. 39.897698332, -105.268651173 WGS 1984 .
39.89769833 -105.2686512 WGS 1984
Collected by permit: Jefferson County Open Space, issued 1 March 2016 to Tom Schweich.
georef coords from label information, updated 04162021