Arrowsmithia corymbosa (M.D.Hend.) N.G.Bergh

Shrub up to 120 cm high, stems and branches greyish-brown densely glandular-setose, striate, rough with the remains of leaf bases. Leaves dense at the ends of the branches, sessile linear, 3.5-4 cm long, 1.5-2 mm broad, margins revolute, midrib prominent below, upper surface densely glandular setose, under surface lanate with long, white curly hairs, glandular-setose on the midrib, apex shortly apiculate. Capitula arranged in dense terminal corymbs, sessile, turbinate 1-1.5 cm long, 1 cm broad at the top. Involucral bracts imbricate, in about 6 rows, outer row ovate 3.5 mm by 1.5 mm innermost linear, 1 cm by 1.5 mm all glandular setose and lanate on the back, greenish with dark brown membranous margins. Receptacle 3 mm diam. slightly convex, honeycombed with the margins of the pits shortly produced. Ray florets sterile, corolla 1.25 cm long, tube very slender, pubescent, 6.5 mm long, limb oblong 1.5 mm broad, three-dentate at the apex; style rudimentary, enclosed in the corolla tube; ovary rudimentary, less than 1 mm long; pappus caducous, bristles 1.25-4 mm long. Disc florets fertile, corolla 6.5 mm long, lower 3.5 mm slender, pubescent, upper part inflated, lobes 1 mm long with thickened tips; style deeply divided, branches more or less truncate with apical hairs longest in the centre; achene 3 mm long, oblong, striate, glabrous crowned with a short, thick beak enclosed in the corolla tube; pappus caducous of slender setose bristles 1.25-4 mm long. The flowering time is late summer to early winter and the shrubs produce an abundance of dense corymbs of bright yellow capitula.