Suffrutex erecta ad 20 cm alta, ad 15 cm lata. Articuli cylindrici carinati, costis lateralibus, 4-8 mm longi, 2-3(-4) mm lati, obscure virides vel purpurascentes; folia sicca vix extensi: folia mortua ramis inhaerentia. Spicae terminates et laterales, (8-)10-20(-30) mm longae, ad apices fastigiatae flore et fructu. Cymae uniflorae, raro biflorae, flore medio laterali longissimo. Perianthii tubus lobis 3, truncatus scutulo laterali, semini nonnunquam inhaerens. Antherae 2. Stigma cristata. Semina oblonga, fusca 2 mm longa, testa coriacea, pilosa, pilis adpressis apice circinatus; endospermum nullum; embryo conduplicatus.
Like S. meyeriana but flowers mostly 1 per cymule.
Jointed annual, up to 200 mm tall, with main stem up to 10 mm diam., lateral branches clustered, segments 2-3(-4) mm diam., often turning bluish red. Flowers 1 per cyme, if rarely 2 or 3 per cyme, then central one much larger than lateral ones, congested in terminal spike-like inflorescences.
Herbaceous annual, erect, up to 20 cm high and 15 cm in diameter; lateral branches fastigiate but not arising at an acute angle to the main branch. Barren segments cylindrical to barrel-shaped with keeled leaf apices and lateral ridge, 4-8 mm long, 2-3(4) mm in diameter, glaucous green fading to bluish-red; leaf apices scarcely spreading when dried. Sclereids in the palisade tissue spirally thickened. Spikes terminal and lateral, (8-)10-20(-30) mm long, tapering when flowering and fruiting. Cymules 1-flowered, rarely 2, 3-flowered; central flower much larger than the lateral flowers and rounded at the apex; flowers protandrous. Perianth tube with three crenate segements, truncate with lateral shield, sometimes adhering to seeds. Anthers 2, 0-5-0-8 mm long. Stigma tufted. Seeds compressed oblong, brown, 2-3 mm long, with membranous testa covered with long hairs, adpressed, coiled at the apex; endosperm absent: embryo conduplicate.
Atlantic Ocean seaboards near Lüderitz and in Langebaan Lagoon.