Annual, succulent herb, erect, wiry branches, ± 0.08 m high. Leaves sessile, oblanceolate to elliptic or ovate, 5-9 x 2-4 mm, obtuse, glabrous, slightly fleshy, green. Inflorescence a thyrse, one dichasium in axils of leaves; flowers sessile, 5-merous. Calyx shorter than petals, very fleshy. Corolla tubular to funnel-shaped, fused at base, yellow; lobes oblanceolate, 4-5 mm long, acute to obtuse, erect, recurved at apex. Flowering time Sept.-Nov.
Annual, with erect, wiry, sparsely branched stem, up to 80 mm tall. Leaves sessile, obovate to elliptic or ovate, dorsiventrally flattened and slightly fleshy, 5-12 x 1-6 mm. Flowers usually in a loose, terminal cluster, tubular to funnel-shaped, petals (3-)4-5 mm long, bright yellow.
Annual with wiry stems to 8 cm. Leaves opposite, oblanceolate to obovate. Flowers in a terminal thyrse, cup-shaped, yellow, petals 4-10 mm long, stigmas subterminal, sterile style with a bilobed apical flap.