Woody shrub to 1 m high, subdioecious. Stems terete. Leaves sessile, elliptic or obovate, 20–40 mm long, 4–10 mm wide, 2.7–5 times longer than broad, denticulate to dentate, acute to apiculate, glabrous, resinous; both surfaces with transparent sessile glands. Capitula solitary, narrowly campanulate, 6.5–8.5 mm long; peduncles 1–5 mm long; outer involucral bracts densely glandular, resinous, with margin entire or glandular; inner bracts linear, 5.4–6.4 mm long, 0.2–0.6 mm wide, acute, glabrous on outer surface, with upper margins entire. Disc florets 2–6 or 25–30; corolla tube cylindrical or expanded towards apex, 4–6 mm long, white; lobes 4, 0.5–0.7 mm long, glandular. Fertile achenes produced only from marginal florets, narrowly ellipsoid, 0.7–0.9 mm long. Pappus bristles of marginal florets 20–28, 3.8–5.0 mm long.
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