It is an annual herb producing a branched or unbranched erect stem up to 45 centimeters tall.

The leaves are up to 9 centimeters long and divided into several lobed to intricately toothed leaflets.

The inflorescence is a one-sided curving or coiling cyme of widely bell-shaped flowers.

Each flower is about half a centimeter long and pale blue or lavender in color.

It is surrounded by a calyx of densely hairy sepals which are unequal in size and shape, 2 being longer and wider than the other 3.