Orbea tapscottii (I.Verd.) L.C.Leach

Succulent forming dense clump 60-120 mm tall and 20-500 mm broad, not rhizomatous. Stems 50-120 mm long, 5-10 mm thick (excluding teeth), erect, green marked with brown to purple patches and lines; tubercles 10-25 mm long, arranged into 4 obtuse rows along stem with groove between rows, tapering into ascending to spreading conical and laterally slightly flattened slender tooth, with minute denticle on each side towards apex. Inflorescence 1 per stem near base, of 1-3(-10) flowers developing in gradual succession, sessile or with peduncle up to 15 mm long, with several short deltoid often laterally toothed bracts 1-2 mm long; pedicel 6-12 mm long, 2.0-2.5 mm thick, ascending and holding flower facing partly upwards or horizontally; sepals 3-5 mm long, 1.5 mm broad at base, ovate or ovate-lanceolate, acuminate. Corolla 22-60 mm diam., rotate; outside smooth, pale green, with 3-5 purplish veins on lobes; inside pale brown or purple-brown to red between cream ridges; tube 1.0-1.5 mm long, 4-5 mm broad, cupular, formed by raised cushion-like convex annulus, containing base of gynostegium only, with dark purple-brown patch in base but no bristles; lobes 10-20 mm long, 8-13 mm broad at base, spreading to recurved, with vibratile marginal cilia up to 3 mm long on basal half of lobes. Corona 4 mm tall, 5 mm broad, ± without basal stipe, red to deep maroon (darker on outer lobes) to pale yellow flecked with maroon; outer lobes <1 mm long, spreading and resting upon side of tube near mouth, deltoid with small apical notch, maroon with pale yellow margins, edges raised towards base and fused to lower backs of inner lobes; inner lobes 4-5 mm long, adpressed to backs of anthers then connivent-erect and diverging towards clavate-tuberculate tips, entire or with 1-2 lateral teeth and often with erect and somewhat laterally flattened dorsal horn (<1 mm long) below middle, pale yellow with maroon margins and maroon apices, sometimes with small irregular obtuse dorsal projection near base.