Glabrous perennial, ± woody at base; stems many, up to 0.6 m long. Leaves in whorls of 6-8; oblong or elliptical, thin, acute, up to 25 x 0.7 mm. Stipules cut to base into lobes or hairs. Inflorescences axillary, ascending, pseudoracemose with 3-8 flowers; peduncles slender, up to 30 mm long. Nectariferous disc small, of 5 obtuse, usually white lobes. Stigmas short, stout. Flowering time Aug.-May. Fruit rounded, slightly shorter than perianth. Seeds black, shining, distinctly bordered.
Sprawling perennial with prostrate, annual branches to 60 cm. Leaves whorled, linear to oblanceolate, acute, with long stipules cut to base. Flowers in lax, axillary cymes on long peduncles, green and white, 3-4 mm long.