Flora of the Hawaiian Islands
Dicotyledon Literature for Polyscias gymnocarpa
Wagner et al., 1990, 1999.
   Araliaceae -- The Ginseng Family Bibliography
      Polyscias gymnocarpa
General Information
DistributionIn the Hawaiian Islands, endemic to O`ahu.

Araliaceae - Polyscias gymnocarpa















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Habit
Trees 2.5-10 m tall, glabrous or mealy stellate pubescent on young leaves and inflorescences.
Leaves
Leaves 30-55 cm long, leaflets 7-21(-25), ovate to oblong-elliptic, often folded upward along the midvein, 7-18 cm long, 3-8 cm wide (the lowest pair smaller, ovate), apex rounded or obliquely acuminate, base rounded to truncate or subcordate, often oblique, petiolules 5-15 mm long.
Flowers
Flowers arranged in terminal umbellules and laterally along the ultimate branches, most of the lateral ones early caducous, inflorescences erect, racemose-umbellate, primary axis stout, 2-8 cm long, the 3-5 secondary axes (rays) divergent, 10-35 cm long, ultimate branches 4-12 cm long, arranged umbellately at the tip and racemosely along the rays, the lower ones early caducous, leaving an evident scar, pedicels 5-10 mm long, elongating up to 14 mm long in fruit; calyx a short rim with 6(7) teeth; petals 5-6(7), lanceolate, 4-8 mm long; stamens 5-6(7); ovary appearing fully superior due to expansion of the disk and reduced development of the hypanthium, (2)3-4(5)-carpellate; stigmas as many as carpels, sessile.
Fruit
Fruit purplish at maturity, ovoid to oblong-turbinate, rarely globose, 6-12 mm long, the disk strongly expanded, the calyx forming a basal rim.
Seeds
Pyrenes papery.