Blue >
Fremont Phacelia
Phacelia fremontii
8-20" plant with 2-5" leaves. Violet to blue flowers with yellow throats in coiled clusters grow at end of branching stems.
Typically found in gravelly or sandy soil below 7,500 feet throughout the Mojave Desert.
Flowers - March to June
Waterleaf Family (Hydrophyllacae)
References:
A Flower Watcher's Guide - Milt Stark
Desert Wildflowers - Philip A. Munz
Mojave Desert Wildflowers - Pam MacKay
The Jepson Desert Manual
Fremont Phacelia photo taken at Joshua Tree National Park