Gutierrezia sphaerocephala
One of the non-shrubby Gutierrezias, found in creosote shrublands &c. in much of New Mexico, western Texas, and southeastern Arizona.
Plant habit on the road to Flat Lake, near Point of Rocks, 3 Aug 2007.
A pseudanthium near Point of Rocks, 3 Aug 2007.
Achenes near Point of Rocks, 3 Aug 2007.
Pseudanthium, showing phyllaries, near Point of Rocks, 3 Aug 2007.
A cauline leaf near Point of Rocks, 3 Aug 2007.