Roughly hairy annual to 15 cm, branching mainly from base. Leaves small, lanceolate, margins thickened, minutely toothed. Flowers in lax, corymbose cymes, bell-shaped, white or blue with white cup and dark ring in throat, 6-8 mm diam., ovary sparsely hairy or velvety in bands. Capsules obovoid to hemispherical.
Prostrate herb. Leaves filiform, short, apex recurved. Flowers purple.