Flora of New Zealand Series

Glabrous tree, 3-9 m high. Twigs rounded, slightly ribbed. Lvs broadly ovate, truncate to cordate at base, rarely perfoliate, acute at apex, (3)-5-15-(20) cm long, usually turning red in cooler part of year; seedling lvs broadly ovate, truncate or cordate at base, sometimes perfoliate; petioles > or ± = blade; stipules soon deciduous. Racemes up to 17 cm long, usually with few solitary long-pedicellate ♀ fls below or at base and many solitary short-pedicellate ♂ fls above (racemes occasionally unisexual); each fl. subtended by a bract and 2 prominent glands at the base of the pedicel. ♂ fls: stamens c. 30-35; perianth segments 1. ♀ fls: ovary 3-celled; styles 3. Fr. ± smooth, 3-angled, reddish, 10-12 mm diam.

K.: Raoul Id, extinct on Macauley Id.

Endemic.

Disturbed sites in forest.

H. polyandrus is sometimes cultivated in the North Id.