Audio of Botanist Arnold Clifford's May 21, 2017 presentation at Plateau Science Society, on Native plants of the Southwest, including those with medicinal, edible, and utilitarian applications such as the dye for wool.
http://www.sjc.cc.nm.us/pages/431.asp
http://fourcornersfreepress.com/?p=1850
https://www.youtube.com/watch?v=LQXx6T6z-I0