Clermontia arborescens (Mann) Hbd. - 'oha wai nui. 
Clermontia calophylla F. Wimmer - Lava clermontia.  Synonymy:   Clermontia montis-loa var. tenuifolia Skottsberg, Clermontia parviflora var. grandis Rock, Clermontia parviflora var. intermedia Skottsberg
Clermontia carinifera Levl. - Koloa clermontia.  (NOTE: Presence in the North American flora not certain. Please contact BONAP if vouchered records are available.)
Clermontia clermontioides (Gaud.) Heller - Kauai clermontia. 
Clermontia drepanomorpha Rock - Kohala mountain clermontia.  Listed by the U.S. FWS as endangered, the FWS local name is `Oha wai and the FWS range is: U.S.A. (HI). FWS Listing information: volume 61 Federal Register 53152; October 10, 1996.
Clermontia fauriei Levl. - Haha'aiakamanu.  Synonymy:   Clermontia clermontioides var. epiphytica Hochr., Clermontia clermontioides var. hirsutiflora Rock
Clermontia fulva Levl. - Yellow-flower clermontia. 
Clermontia grandiflora Gaud. - Bog clermontia. 
Clermontia hawaiiensis (Hbd.) Rock - 'oha kepau.  Synonymy:   Clermontia kohalae var. hiloensis F. Wimmer
Clermontia kakeana Walp. - Forest clermontia.  Synonymy:   Clermontia kakeana var. orientalis St. John
Clermontia kohalae Rock - Waipio valley clermontia.  Synonymy:   Clermontia convallis F. Wimmer, Clermontia kohalae var. robusta Rock
Clermontia X leptoclada Rock (pro sp.) [drepanomorpha X kohalae]. Synonymy:   Clermontia leptoclada var. holopsila F. Wimmer, Clermontia leptoclada var. urceolata Rock
Clermontia lindseyana Rock - Hillside clermontia.  Listed by the U.S. FWS as endangered, the FWS local name is `Oha wai and the FWS range is: U.S.A. (HI). FWS Listing information: volume 59 Federal Register 10324; March 4, 1994 (141K file). Synonymy:   Clermontia hawaiiensis var. grandis Rock, Clermontia lindseyana var. livida Rock
Clermontia micrantha (Hbd.) Rock - Maui clermontia. 
Clermontia montis-loa Rock - Mauna loa clermontia. 
Clermontia multiflora Hbd. - Waihee clermontia. 
Clermontia oblongifolia Gaud. - Oahu clermontia. 
Clermontia pallida Hbd. - Wailai pali clermontia.  Synonymy:   Clermontia pallida var. ramosissima Rock
Clermontia parviflora Gaud. ex Gray - Small-flower clermontia.  Synonymy:   Clermontia paradisia F. Wimmer, Clermontia parviflora var. umbraticola Skottsberg
Clermontia peleana Rock - Pele clermontia.  Listed by the U.S. FWS as endangered, the FWS local name is `Oha wai and the FWS range is: U.S.A. (HI). FWS Listing information: volume 59 Federal Register 10324; March 4, 1994 (141K file). Synonymy:   Clermontia clermontioides var. barbata (Rock) St. John, Clermontia singuliflora (Rock) Rock
Clermontia persicifolia Gaud. - Waioiani clermontia. 
Clermontia pyrularia Hbd. - Hamakua clermontia.  Listed by the U.S. FWS as endangered, the FWS local name is `Oha wai and the FWS range is: U.S.A. (HI). FWS Listing information: volume 59 Federal Register 10324; March 4, 1994 (141K file). This taxon listed by the Center For Plant Conservation.
Clermontia samuelii Forbes - Hana clermontia. 
Clermontia tuberculata Forbes - Haleakala clermontia.  Synonymy:   Clermontia tuberculata var. subtuberculata St. John
Clermontia waimeae Rock - Swamp-forest clermontia.  Synonymy:   Clermontia parviflora var. calycina Rock, Clermontia waimeae var. longisepala Rock, Clermontia waimeae var. obovata Rock
Cyanea calycina (Cham.) Lammers. Synonymy:   Clermontia aspera F. Wimmer p.p., Cyanea coronata F. Wimmer, Cyanea lanceolata ssp. calycina (Cham.) Lammers, Givnish & Sytsma, Rollandia bidentata St. John, Rollandia calycina (Cham.) G. Don, Rollandia calycina var. kaalae (Wawra) F. Wimmer, Rollandia lanceolata ssp. calycina (Cham.) Lammers, Rollandia lanceolata var. tomentella (Wawra) F. Wimmer, Rollandia waianaeensis St. John
Cyanea pohaku Lammers - Pohaku cyanea.  Synonymy:   Clermontia haleakalensis Rock, non Cyanea haleakalensis St. John