Flora of the Hawaiian Islands
Dicotyledon Literature for Macaranga tanarius
Wagner et al., 1990, 1999.
   Euphorbiaceae -- The Spurge Family Bibliography
      Macaranga tanarius
General Information
DistributionNative to Malesia.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Maui, Hawai`i.

Dioecious trees 4-10(-20) m tall.
Leaves peltate, ovate to oblong-ovate, 8-30 cm long, petioles 6-25 cm long, stipules oblong to narrowly ovate, 1-3 cm long, quickly deciduous.
Male flowers in open panicles 13-35 cm long, bracts and calyx pale green to yellowish green, stamens (3)4-6(-10), anthers tetrathecal; female flowers in panicles 8-30 cm long, ovary 2-3-celled, styles 5-8 mm long.
Capsules 2-3-valved, 10-12 mm long, covered with pale waxy glands and soft, scattered, elongate, spine-like processes.
2n = 22