Psilostrophe cooperi  Paperflower, Yellow Zinnia
PERENNIAL.  Shrubby, dome-shaped mounds of soft, flexible, slightly fuzzy bluish-green stems with sparse linear leaves and abundant bright yellow flowers, 2-3 cm in diameter.  Blooms April-June and again in late summer after rain.  Very common in the Empires on flat open ground in desertscrub.  Zinnia acerosa grows in similar places but has creamy white flowers and its stems are bristly with sharp, dark green spiny-looking leaves.