Spiny perennial herb or subshrub with prostrate or scrambling branches to 1m long, glabrescent stems. Mucrinate or spinose white-hairy leaves to 42mm x 14mm. Axillary cymes to 85mm long with 5-20+ flowers, bracteoles enclosing base or calyx 29mm x 14.5mm with spines to 7mm long, pale green to mauve calyx with lobes to 25mm x 23mm, pink, lilac-blue or mauve-pink corolla to 40mm long, tube to 27mm long, lobes to 16mm x 11mm. Glabrous capsule 17mm long.