Family: Four 0'Clock (Nyctaginaceae)
Size: To 0.125 in. wide in tight custers on stems in leaf axils.
Other names: Indian boerhaavia, wine-flower, scarlet spiderling
Notes: 12 species of Boerhaavia in Arizona.
Red spiderling entry in the online edition of An Illustrated Guide to Arizona Weeds, Kittie F. Parker, University of Arizona Press.
This plant is found on the Appleton-Whittell Research Ranch Working Check list of flora.