Where we live in southeastern Arizona it has been a very wet winter with rain out in the flats and snow in the hills...
Mentzelia pumila is in the family Loasaceae. Kearny and Peebles in Arizona Flora note that “the family is remarkable for the diversity and peculiar...
The common name of Calylophus hartwegii is Sundrops. That’s considerably easier to say and I suspect that the common name covers a few species...