i saw this and thought of when I look for wild edible plants when driving.

https://theprairieecologist.files.wordpress.com/2020/01/a-field-guide-to-roadside-wildflowers-at-full-speed_january2020-1.pdf [https://theprairieecologist.files.wordpress.com/2020/01/a-field-guide-to-roadside-wildflowers-at-full-speed_january2020-1.pdf]