HEIMIA SALICIFOLIA and HEIMIA MYRTIFOLIA
Native to the southwestern United States, through Mexico and Central America to Argentina.
Common names include shrubby yellowcrest, sinicuichi, sun opener, willow-leaf heimia, sini.
The plant has been used for shamanic purposes by natives in Central America and Mexico.
Fresh leaves were collected and allowed to wilt., and put into a cup of cool water, then set in the sun for 24 hours.
It's said that during the process, knowledge of the sun is embedded into the potion, creating the "elixir of the sun."