Mexican Prickle Poppy (Argemone Mexicana)

Papaveraceae (Poppy family) 

Group: Dicot (broadleaf) 

Erect, branching annual herb, native of North America. It can be a weak perennial in south Florida where it is commonly found in non-crop areas, along canals and ditch banks.

Leaves are opposite, petioled, with odd number of leaflets. Leaf margins are toothed. Lower surface of the leaf is hairy

Flowers are solitary, bright yellow to orange. Seeds are small, gray to black. 

Stem is erect, solitary, spiny, branching near the base, and 8 to 31 inches tall. Stems have yellow latex.

Roots are fibrous from a taproot.

Propagation is by seed. 

 
(Seedling)