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

Rounded shrub up to 60 cm high, stems erect, woody, with smooth greyish-brown bark below, brown, rough with the bases of leaves in the upper part, densely leafy at the apex. Leaves yellowish-green, sparsely setose not punctate, erect, slender, 1-2 cm long, less than 1 mm broad, margins revolute, midrib prominent below, apex acute, more or less mucronate. Capitula terminal, sessile, solitary, cylindrical to turbinate 1 cm long, 8-9 mm broad at the top. Involucral bracts imbricate, in several rows, glabrous or minutely glandular, outermost ovate acute 2.5 mm by 1.25 mm, inner linear obtuse or acute 9 mm by 1.5 mm, margins membranous, midrib conspicuous. Receptacle fiat, honeycombed 2.5 mm diam. Ray-florets 8-11, limb of corolla oblong, 5 mm by 1.75 mm, tube 4.5 mm slender, lower 2.25 mm glabrous, white yellow above bearing short, curly hairs. Achene 1.5 mm long white, villous with long erect hairs, pappus bristles in a single row, slender, yellow, setose longer than corolla tube, 6 mm long. Disc florets 30-35, corolla slender, 6.5 mm long, upper 2.5 mm gradually inflated to 1 mm diam., lower 2.5 mm white, glabrous, the middle becoming yellow hairy. Achene 2 mm long, white villous with long, erect hairs, pappus not caducous slender as long as the corolla, yellow, setose.