The mini-meatball seeds from last week were from California poppies, Eschscholzia californica.
California poppies are great sources of pollen for bees.
This little gal is about the size of a pencil lead.
The poppies found in southern Arizona tend to be lighter in color, almost yellow at the tips. They were once considered to be a separate species, but are now considered to be a subspecies, They are commonly called Mexican gold poppies.
Here is the unrelated oriental poppy (Papaver) for comparison.
Do poppies grow where you live?