Some of these are still blooming around the Bear Bridge (at least they were when the photo was taken. They might have uprooted themselves and headed south because of the freezing temps). Camphorweed(Heterotheca subaxillaris) is (you guessed it) in the Sunflower family. Both the Net-Leaf and the Desert Hackberry, however, are (now) in the Hemp Family (Cannabaceae). Don't smoke 'em.