Plant: Annual forb to 40 cm; herbage glandular, with stiff hairs Leaves: leaves alternate, entire to bipinnate, larger leaves basal Flowers: inflorescences helicoid (curled at the tip like a scorpion's tail); corolla tubular, light blue, stamens and styles exerted 2 mm or more Fruit: a capsule; ventral surface of seed divided by a prominent ridge, corrugated on one side.
