Asclepias asperula (Asclepias capricornu)
Seed pods
Seed ball
Family: Milkweed (Asclepiadaceae)
Size: To 0.5 in. wide in clusters to 3 in. wide
Date: 5/16/2001
Other names: Spider Antelope Horns
Notes: 27 species of Asclepias in Arizona.
This plant is found on the Appleton-Whittell Research Ranch Working Check list of flora.