Tree up to 15 m. tall; trunk up to 1 m. diam.; reduced to shrub in subalpine belt. Lvs coriac., 10-15 × 7-10 mm., on petioles 1-2 mm. long; lamina ovate to ovate-oblong, acute to subacute, obliquely rounded at base, glab. above, clad in dense greyish white to subfulvous tomentum below; nervation us. obscure. Domatia absent. Staminate infls 1-3 per branchlet, 1-2-fld; peduncles very short, sparsely pubescent. Per. broadly campanulate, 2 × 2 mm., with 4-5 obtuse lobes. Stamens 8-14; anthers 2-3 mm. long, dark red. Pistillate infls 1-(2) per branchlet, sessile, viscous, almost glab. to pubescent, 2 mm. long. Lateral fls trimerous, terminal dimerous; stigmas clavate. Cupule 3-partite, up to 7 mm. long. Nuts glab. to puberulous, 6-7 mm. long; wings with acute tips.
Montane and sub-alpine forests and scrub, southwards from latitude 38°s, in North and South Islands.