Question: Which plant grows in a specific region, Dendromecon or Aulax? 
Sentence (from "Argemone albiflora"): Argemone albiflora, the white prickly poppy, also known as the bluestem prickly poppy or the Texas prickly poppy, is a small erect plant with a decorative white flower with a yellow latex.
Relevant evidence: No