Trixis californica Kellogg
An unusual asterid shrub common in washes in the Sonoran Desert, less common in the Chihuahuan.
A pseudanthium in Kings Canyon in the Tucson Mountains, Pima County, Arizona, 20 Feb 2004.
Plant habit in Kings Canyon, 20 Feb 2004.
A pseudanthium at Mars Canyon, southwestern Organ Mountains, Doña Ana County, New Mexico, 23 Sep 2006.
Immature pseudanthia, showing phyllaries, at Mars Canyon, 23 Sep 2006.