Solanum umbelliferum
 Solanum umbelliferum is a species of nightshade known commonly as blue witch nightshade or bluewitch. It can be found in chaparral habitat and low-elevation oak woodlands in California and parts of Baja California and Arizona. It is a small perennial herb or subshrub with dark gray-green oval-shaped leaves on hairy green stems that grow to a maximum height of one meter. It has bright purple or blue frilly flowers with thick yellow anthers at the center.