Annual herb 10-75 cm tall. Stem minutely-pubescent to glabrous below, glabrous and viscid above. Leaves sessile, linear to linear-elliptic, up to 25 x 2 mm, scabrid-pubescent, the upper glabrous, ciliate-margined near base as are the bracts. Flowers in dichisial cymes, capillary-pedicellate. Calyx 10-veined narrow, up to 15 mm long, glabrous, the teeth triangular, acute, scarious- and ciliate-margined. Petals white, the limb 6-10 mm, 2-fid to 2-partite in to linear lobes. Capsule 7-10 mm. Anthophore 8-10 mm, as long as or longer or shorter than the capsule. Seeds grey, wrinkled-muricate, shallowly grooved on the back, edges ounded, faces shallowly concave.