Phacelia campanularia - the desert bluebell - grows in the Mojave and Sonoran deserts, and its flowers are amongst the largest in the genus; they are bell-shaped, purple to blue in color, with protruding stamens and a divided style. This is a common species, often seen along roadsides, dry washes and desert hillsides. Stems are reddish-brown, and the broad green leaves may have red edges.
Other species in the boraginaceae family