Trianthema L.

Style solitary Trianthema
Flowers clustered.
Stamens 5. Leaves terete to oblanceolate, up to 30 mm long, less than 4 mm wide, with a membranous sheath, succulent. Prostrate to ascending herb to 60 cm high. Coast. Usually on sandy soils Trianthema triquetra
Stamens 7–10. Leaves obovate to orbicular up to 5 mm long. Petiole base dilated and with scarious margins. Slender, prostrate, glabrous, herb. Collected once from Hawksebury River in 1839. Extinct Trianthema cypseleoides