In the drier parts of the Yuba River Goldfields nothing grows, but there are places with brief springtime wildflowers, and even in the gravels where not even grasses take root, there may be lupines and poppies. California Poppies grow up to 2500 feet nearby in Nevada City where they struggle to compete. Here at 300 feet and in gravels poppies have a very brief flourishing when they may dominate.
At the Father Crowley overlook adjacent to the ravine edge.
Ranunculales is an order of flowering plants. Of necessity it contains the family Ranunculaceae, the buttercup family, because the name of the order is based on the name of a genus in that family. Ranunculales belongs to a paraphyletic group known as the basal eudicots. It is the most basal clade in this group; in other words, it is sister to the remaining eudicots. Widely known members include poppies, barberries, and buttercups.