Dryas ajanensis subsp. beringensis Jurtzev in A. I. Tolmatchew (Q3866)

Leaf-blades oblong or ovate to elliptic, 3–10 × 0.5–4 mm, base usually truncate or cordate, sometimes cuneate, margins flat, coarsely dentate to serrate, sinuses 5–25% to midvein, apex acute to rounded, surfaces plicate along midvein and/or rugulose or rugose, midvein and lateral-veins sunken, abaxial tomentose to woolly, adaxial usually glabrous, sometimes sparsely hairy proximally on midvein, feathery hairs abundant along midveins abaxially and on petioles, rarely scattered elsewhere, midveins and petioles abaxially usually stipitate-glandular.