Woody herb or shrub 60–300 cm tall; stem blackish, showing leaf-scars after fall of the rather persistent bases of the dead leaves.. Leaves crowded, sessile, linear, light green, 1–3.2 cm long, 0.1–0.25 cm wide, slightly narrowed above the expanded membraneous base, minutely serrulate or entire, bluntly apiculate, shortly ciliate on the margins near the base, otherwise glabrous.. Capitula radiate, numerous, solitary on upper axillary peduncles; stalks of individual capitula 0.8–4.6 cm long, very sparsely hairy to densely tomentose; involucres woolly at the base; phyllaries 13–16, ovate or ovate-lanceolate, 4.5–6.5 mm long, united in lower half or third, obtuse to acuminate, shortly hairy at the apex.. Ray florets (11–)13(–21), bright yellow, rays 10–15 mm long, 2.7–4 mm wide; disc florets many, yellow, 2.3–4 mm long.. Achenes oblong, 2.5–4.5 mm long, 5–8-ribbed, glabrous or sparsely pilose; pappus of bristles 1–2.5 mm long.. Fig. 119 (page 568).
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