Rounded shrub to 1 m high. Branchlets glandular-verrucose. Leaves shortly petiolate, oblong-cuneate, 7–15 mm long, 2–4 mm wide, cuneate at base, recurved and glandular-crenulate at margins, obcordate, recurved at apex; adaxial surface slightly rounded, smooth to glandular-scabridulous, glabrous, medially channelled; abaxial surface with prominent glandular-verrucose midrib, closely silvery-lepidote. Umbels (1–) 3–6-flowered; pedicels 4–6 mm long. Calyx hemispherical, 3.5–4.5 mm high including the prominent deltate lobes 2–2.5 mm long, glandular-verrucose, silvery stellate-lepidote adaxially, silvery-to ferruginous-lepidote abaxially. Petals broadly elliptic, 5–6 mm long, 3 mm wide, white. Fruit as in P. tuberculosum.