I flew back to Las Vegas earlier this week and returned to Red Rock Canyon National Conservation Area to see the beautiful Calochortus striatus (or Alkali Mariposa Lily) in bloom. I found the largest population at Ash Spring. This lily is not on Nevada’s Endangered, Threatened, Proposed, and Candidate Species list. Enjoy!This was the only plant I found with yellow glands (above). The others had either pink or peach glands and they were really hairy.Habitat.