Annual herb, 0.05-0.30 m high. Stems erect, slender; glandular-hairy. Leaves sessile; blade narrowly ovate to ovate, 10-30 x 3-10 mm, sessile. Flowers: style with only upper 2/3 papillate; corolla white; Oct.-Jan. Fruit a membranous capsule, splitting into 10 short lobes above.
Erect, slender annual herb, up to 460 mm tall. Leaves narrowly ovate to ovate, sessile. Style with only upper two-thirds papillate. Fruit a membranous capsule, splitting into 10 short lobes above. Flowers white.