Brickelliastrum fendleri
A cliff-dwelling plant formerly included in Brickellia, most readily distinguished from Brickellia by having pure white (rather than greenish-yellow or cream-colored) flowers. Found throughout much of New Mexico, in eastern Arizona, and peripherally in Texas.
Plant habit in Pueblo Canyon, San Francisco Mountains, Catron Co., New Mexico, 15 Aug 2009.
Pseudanthia in Pueblo Canyon, 15 Aug 2009.
A cauline leaf in Pueblo Canyon, 15 Aug 2009.
Side view of pseudanthia in Pueblo Canyon, 15 Aug 2009.