Annual erect herb to 40 cm high. Stems and leaves with sparse multicellular trichomes and minute glandular hairs. Leaves filiform, 9–45 mm long, 0.4–0.6 mm wide; margins revolute. Capitula terminal. Outer involucral bracts spreading, narrowly lanceolate, acuminate, glabrous or with scattered minute glandular hairs; inner involucral bracts 9.5–11 long. Marginal florets 3–5; corolla filiform but expanded at base, 5.5–6.5 mm long, ligulate; ligule 1–1.6 mm long, white, 2-lobed. Disc florets 1–3; corolla cylindrical, 6.3–6.9 mm long, white, sparsely glandular; lobes deltate, c. 0.5 mm long, glabrous; ovary vestigial. Achenes flattened-obovoid, 2–2.4 mm long; densely sericeous. Pappus bristles of unequal lengths, longest ones 5.3–6.5 mm long.
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