Wagner, Warren L., Derral R. Herbst and S. H. Sohmer. 1999. Manual of the Flowering Plants of Hawai

Flora of Hawaii:

Distribution     
In the Hawaiian Islands, endemic to Kaua`i.

Habit
Sparingly branched shrubs 0.3-1 m tall. 

Leaves
Leaves cordiform, blades 8.5-10.5 cm long, 7-8 cm wide, glabrous, margins callose-crenulate, apex acute, base cordate, petioles 12-15 cm long.  Flowers  

Flowers
Inflorescences 30-40-flowered, glabrous, peduncles 25-30 mm long, pedicels 7-10 mm long; hypanthium obconical, 7-8 mm long; calyx lobes dentiform, 0.5-1 mm long; corolla white with purple longitudinal stripes, 20-22 mm long, 3-3.5 mm wide, gently curved, the lobes spreading; staminal column glabrous; anthers glabrous, all 5 with apical tufts of white hairs.   

Fruit
Berries dark purple, globose, ca. 1 cm long.