Phacelia stellaris is an annual herb producing a spreading, branching stem up to about 25 centimeters long and lightly hairy in texture. The leaves are lance-shaped to oval with lobededges, sometimes divided into smallerleaflets. The hairy inflorescence is a one-sided curving or coiling cyme of bell-shaped flowers, each roughly half a centimeter long. The five-lobed flowers are pale blue or purple in color.