Seen on Rattlesnake Butte, on the SD side of the reservation. Linda Black Elk told me that it is called Núŋǧe Yazáŋ Pȟežúta, or Earache Medicine. She said that people dry it and apply a poultice of the leaves for an earache. I am not sure what the English or Latin names are, and I have never used it myself.
It is a soft, small plant that grows low to the ground on rocky outcroppings. I believe that Linda says it only grows in high places.
Here are 2 smaller specimens (bottom of the picture, below the 4 small clumps of Pȟéžíȟota waštémna (Artemisia frigida). Standing Rock.