Here are a few natives that might work:
Argemone munita (Prickly Poppy)
Astragalus purshii (Pursh's Sheeppod)
Boechera pulchra (Beautiful Rockcress)
Brickellia californica (California Brickellia)
Calochortus bruneaunis (Pinyon Mariposa)
Castilleja chromosa (Desert Paintbrush)
Castilleja linariifolia (Desert Paintbrush)
Epilobium canum (California Fuchsia)
Eriastrum densifolium (Giant Eriastrum)
Erigeron divergens (Diffuse Daisy)
Eriodictyon parryi (Poodle-Dog Bush)
Eriogonum ovalifolium (Oval Leaved Eriogonum)
Mentzelia laevicaulis (Giant Blazingstar)
Mirabilis multiflora (Giant Four O'clock)
Monardella linoides (Narrow Leaved Monardella)
Oenothera californica (California Evening Primrose)
Penstemon grinnellii (Grinnell's Beardtongue)
Penstemon rostriflorus (Bridge's Beardtongue)
Sphaeralcea ambigua (Desert Mallow)
Stanleya pinnata (Prince's Plume)
Symphyotrichum ascendens (Western Aster)
Asclepias speciosa (Showy Milkweed)
Clematis ligusticifolia (Creek Clematis)
Heuchera rubescens (Pink Alumroot)
Iris missouriensis (Western Blue Flag)
Oenothera elata (Evening Primrose)
Eriophyllum confertiflorum (Yellow Yarrow)
Petrophytum caespitosum (Mat Rockspirea)