Sep 1, 2013 ARROWHEAD/2013_09_01  Sep 4, 2013 Danada Forest Preserve, IL   DUPAGE/2013_09_04 Sep 4, 2013
(Prickly Lettuce)
Prickly Lettuce

Lactuca serriola
inaturalist

Peter 2.0 root Root inaturalist 1 photo this page.
 CC BY 4.0 photographer: Peter Chen 2.0