Asclepias asperula is found beyond the borderlands around the Southwestern United States and into Northern Mexico. My explanation of the common name antelope horns...
Berberis fremontii is in the Barberry family or Berberidaceae. If you look up barberry plants in a field guide, a flora or on line,...
Sweet acacia is Vachellia farnesiana (Acacia farnesiana) and is in the pea family Fabaceae. I have never seen it in habitat, though as I...