Perennial, with few, erect branches, 50-200 mm tall, with internodes ± visible. Leaves linear-lanceolate, triangular in cross section, 20-80 x 3-6 mm, glabrous to hairy or papillate. Flowers in round-topped, branched clusters, on a minutely pubescent peduncle 20-100 mm long, tubular, petals 2-3 mm long, fused in lower 0.3 mm, cream, fading to brown.