Usually branched perennial, 10-60 mm tall. Leaves in loosely spaced whorls, sessile, narrowly triangular, dorsiventrally flattened and leathery, 3-5 x 2-3 mm, with marginal cilia towards base. Flowers in a dense, terminal, rounded head, ± embedded among leaves, flask-shaped, petals 5-8 mm long, fused in lower 2 mm, cream to pale yellow.