Flora of the Hawaiian Islands
Dicotyledon Literature for Kadua formosa
Wagner et al., 1990, 1999.
   Rubiaceae -- The Coffee Family Bibliography
      Kadua formosa
General Information
Distribution In the Hawaiian Islands, endemic to Maui.

Click here for detailed USGS map by Jonathan Price
Subshrubs up to 10 dm tall; main stem prostrate, hollow, somewhat quadrangular or 4-costate, glabrous.
Leaves coriaceous, lanceolate to elliptic or oblong, 5.5-14 cm long (1.6-)2.3-4.5 cm wide, lateral veins strongly ascending, higher order venation on lower surface conspicuously reticulate, apex acuminate, base cuneate, petioles 0.2-0.4 cm long, stipules broadly deltate, 3.5-4.5 mm long, adnate to petioles and forming a persistent sheath, apex long-acuminate.
Flowers in dense corymbose inflorescences subtended by 2 cordate bracts, often with a lateral inflorescence in each, central flower of the ultimate cyme sessile or on a pedicel shorter than that of the 2 lateral cymes, lateral pedicels ca. 1-2 mm long; hypanthium cylindrical-turbinate, ca. 2 mm long; calyx lobes bluntly deltate, 0.7-1 mm long, 0.6-0.7 mm wide, not enlarging in fruit; corolla white, fleshy, salverform, the tube 20-26 mm long, the limb not strongly quadrangular in bud, the lobes ca. 6-7 mm long; stamens inserted somewhat below corolla throat; style glabrous, the lobes flattened.
Capsules ellipsoid-cylindrical, 9-12 mm long, 3-3.5 mm in diameter, dehiscing loculicidally across disk, then septicidally, endocarp heavily sclerified, disk depressed-conical.
Seeds dark brown to nearly black, peltate, angled.