Polycarpaea
12 species in Aust.; Qld, NSW, NT, S.A., WA
Polycarpaea corymbosa corymbosa
Annual herb up to 15 cm high, with pubescent stems. Leaves often apparently whorled, terete, 2–10 mm long; stipules prominent, hyaline. Flowers in terminal much branched cymes. Sepals 5, scarious, reddish-brown in centre, white towards the margin, acute, 2–3 mm long. Petals 5, entire shorter than the sepals. Stamens 5, adnate to petals in a small basal cup. Fruit a capsule. Sandy soils near Menangle Park. Uncommon in the area. Fl. summer.