Size: To 5 in.
Other names: Prickly poppy, thistle poppy, chicalote, cowboy's fried egg
Notes: All parts poisonous; however, mourning doves eat seeds. 6 species of Argemone in Arizona.
Bluestem pricklepoppy entry in the online edition of An Illustrated Guide to Arizona Weeds, Kittie F. Parker, University of Arizona Press.
This plant is found on the Appleton-Whittell Research Ranch Working Check list of flora.