Prickly Poppy - Argemone polyanthemos
- Height is 1-4 feet tall.
- Flowers from June through Sept.
Usually found in sandy soils of flood plains, disturbed areas, and roadsides.
Occurs throughout Kansas.
The plant is poisonous to cattle, but livestock will leave it untouched, due to its prickly spines.
It has a sticky, bright yellow-orange sap.