Welshes' Milkweed (Asclepias welshii) is a threatened milkweed found on open, sparsely vegetated semi-stabilized sand dunes and on the lee slopes of actively drifting sand dunes. Several thousand individuals are known from a few concentrated areas on the Coral Pink Sand Dunes and the Sand Hills area of Kane County, Utah. Small populations are found in some neighboring areas along the Arizona/Utah border.