Flora of the Hawaiian Islands
Dicotyledon Literature for Colubrina oppositifolia
Wagner et al., 1990, 1999.
   Rhamnaceae -- The Buckthorn Family Bibliography
      Colubrina oppositifolia

Common name(s): kauila, kauwila
General Information
DistributionIn the Hawaiian Islands, endemic to O`ahu, Maui, Hawai`i.

Click here for detailed USGS map by Jonathan Price
Trees 5-13 m tall.
Leaves decussate, dull, membranous, ovate to ovate-elliptic, 6-12 cm long, 3-7 cm wide (up to ca. 20 cm long and 8.5 cm wide in seedlings), pinnately veined, glabrous, lower surface with 2 kinds of glands, small, submarginal, blackish ones and a peculiar gland-like proliferation in the axil of each secondary vein, margins entire, apex acute to short-acuminate, petioles 1.4-3 cm long (up to 4.5 cm long in seedlings), stipules of each pair of leaves connate into a lanceolate structure, dark pigmented, 6-8 mm long, caducous, leaving a prominent whitish scar.
Flowers 10-12 in thyrses 10-15 mm long, peduncles 3-8 mm long, pedicels ca. 2-3 mm long, elongating to 6-13 mm long in fruit; sepals deltate, ca. 1.5-2 mm long; petals ca. 1.5 mm long; style short, 3-lobed.
Fruit broadly subglobose, 8-11 mm long, explosively dehiscent.
Seeds oblong-obovoid, 6-8 mm long, base shallowly notched.
2n = 48*