Asclepias linaria

A distinctive species of the Sierra Madre Occidental, entering the U.S. in southeastern Arizona and extreme southwestern New Mexico.

Plant habit at Barranca de Batopilas, Chihuahua, 22 Mar 2007.

Inflorescences at Barranca de Batopilas, 22 Mar 2007.

Flowers at Barranca de Batopilas, 22 Mar 2007.