1. Any plant of the genus Argemone having large white or yellow flowers and prickly leaves and stems and pods; chiefly of tropical America
   "The prickly argemone is also known as prickly poppy";
   - argemone, white thistle, devil's fig
    
2. Annual Old World poppy with orange-red flowers and bristly fruit
   "The prickly poppy's thorny pods deterred grazing animals";
   - Papaver argemone

Derived forms: prickly poppies

Type of: herb, herbaceous plant, poppy

Part of: genus Argemone, genus Papaver, Papaver

Encyclopedia: Prickly poppy