KamapuaaRubiaceae (Coffee family)[syn. Hedyotis fluviatilis]Endemic to the Hawaiian Islands (Kauai, and Oahu in Koolau Mts. from Ppkea to Mnoa)EndangeredOahu (Cultivated)EtymologyKadua is the oldest generic name for these species and is named in memory of M. Kadua, a native of Ulea, who sailed with Otto von Kotzebue (1787-1846), Baltic German navigator in Russian service, with the purpose of collecting plants.The specific epithet fluviatilis means "growing in rivers and streams, of running water."
nativeplants.hawaii.edu