Flora of the Hawaiian Islands
Dicotyledon Literature for Indigofera suffruticosa
Wagner et al. 1990, 1999..
   Fabaceae -- The Pea Family Bibliography
      Indigofera suffruticosa

Common name(s): indigo, `iniko, `inikoa, kolu
General Information
DistributionPantropical, but presumably of Neotropical origin.In the Hawaiian Islands, naturalized on Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.

Erect shrubs to 20-25 dm tall.
Leaflets (7-)9-17, opposite, oblong, elliptic, or sometimes elliptic obovate, 10-38 mm long, 3-15 mm wide, upper surface glabrous to sparsely strigose, lower surface moderately strigose.
Flowers in racemes 2-4 cm long; calyx ca. 1.5 mm long, teeth deltate; corolla salmon pink to red, 4-6 mm long.
Pods linear, strongly curved upward, 15-20(-30) mm long, 2-3 mm wide, moderately strigillose.
Seeds 4-6, dark brown, 1.7-2 mm long, 1.2-1.5 mm wide.
2n = 12, 16, 32.