| Campanula alliariifolia Willd. | Campanula aucheri A. DC. |
| Campanula carnica Schied. ex Mert. & Koch [excluded] | Campanula cochlearifolia Lam. [excluded] |
| Canarina abyssinica Engl. | Clermontia arborescens (Mann) Hbd. ssp. waikoluensis (St. John) Lammers |
| Clermontia grandiflora Gaud. ssp. maxima Lammers | Clermontia leptoclada Rock (pro sp.) [drepanomorpha kohalae] |
| Clermontia peleana Rock var. singuliflora (Rock) Lammers | Codonopsis Wall. |
| Cyanea lobata Mann ssp. baldwinii (Forbes & Munro) Lammers | Delissea niihauensis St. John |
| Lobelia gruina Cav. [excluded] | Lobelia rogersii Bowden [brevifolia puberula] |
| Lobelia speciosa Sweet (pro sp.) [cardinalis siphilitica] | Lobelia speciosa Sweet (pro sp.) var. occidentalis Bowden (pro nm.) |
| Lobelia speciosa Sweet (pro sp.) var. schneckii Bowden (pro nm.) | Lobelia speciosa Sweet (pro sp.) var. speciosa |
| Cyanea angustifolia (Cham.) Hbd. | Cyanea tritomantha Gray |
| Clermontia hawaiiensis (Hbd.) Rock | Clermontia arborescens (Mann) Hbd. |
| Clermontia arborescens (Mann) Hbd. ssp. arborescens | Clermontia arborescens (Mann) Hbd. ssp. waihiae (Wawra) Lammers |
| Campanula garganica Ten. | Lobelia villosa (Rock) St. John & Hosaka |
| Campanulastrum americanum (L.) Small | Lobelia anatina F. Wimmer |
| Campanula uniflora L. | Campanula prenanthoides Dur. |
| Downingia bacigalupii Weiler | Platycodon grandiflorus (Jacq.) A. DC. |
| Campanula reverchonii Gray | Campanula trachelium L. |
| Lobelia feayana Gray | Campanula L. |
| Campanulastrum Small | Codonopsis pilosula (Franch.) Nannf. |
| Lobelia berlandieri A. DC. | Lobelia berlandieri A. DC. var. berlandieri |
| Lobelia berlandieri A. DC. var. brachypoda (Gray) McVaugh | Campanula rotundifolia L. |
| Githopsis Nutt. | Cyanea obtusa (Gray) Hbd. |
| Clermontia grandiflora Gaud. | Clermontia grandiflora Gaud. ssp. grandiflora |
| Clermontia grandiflora Gaud. ssp. munroi (St. John) Lammers | Lobelia gloria-montis Rock |
| Lobelia boykinii Torr. & Gray ex A. DC. | Brighamia Gray |
| Brighamia citrina (Forbes & Lydgate) St. John | Brighamia citrina (Forbes & Lydgate) St. John var. napaliensis St. John |
| Brighamia remyi St. John | Brighamia insignis Gray |
| Downingia Torr. | Asyneuma prenanthoides (Dur.) McVaugh |
| Campanula aparinoides Pursh var. grandiflora Holz. | Campanula aparinoides Pursh var. uliginosa (Rydb.) Gleason |
| Campanula uliginosa Rydb. | Campanula linifolia Scop. non L. [excluded] |
| Campanula flexuosa Michx. | Rotantha floridana (S. Wats. ex Gray) Small |
| Campanula angustiflora Eastw. var. exilis J.T. Howell | Campanula lasiocarpa Cham. ssp. latisepala (Hultn) Hult |
| Campanula latisepala Hult | Campanula latisepala Hultn var. dubia Hult |
| Campanula persicifolia L. var. alba Horton | Campanula rapunculoides L. var. ucranica (Bess.) K. Koch |
| Rotantha robinsiae (Small) Small | Campanula alaskana (Gray) W. Wight ex J.P. Anders. |
| Campanula dubia A. DC. | Campanula gieseckiana Vest ex J.A. Schultes |
| Campanula gieseckiana Vest ex J.A. Schultes ssp. groenlandica (Berlin) Bcher | Campanula gieseckiana Vest ex J.A. Schultes var. arctica (Lange) Bcher |
| Campanula groenlandica Berlin | Campanula heterodoxa Bong. |
| Campanula intercedens Witasek | Campanula petiolata A. DC. |
| Campanula rotundifolia L. ssp. groenlandica (Berlin) A.& D. Lve | Campanula rotundifolia L. ssp. intercedens (Witasek) A.& D. Lve |
| Campanula rotundifolia L. var. alaskana Gray | Campanula rotundifolia L. var. alpina Tuckerman |
| Campanula rotundifolia L. var. arctica Lange | Campanula rotundifolia L. var. intercedens (Witasek) Farw. |
| Campanula rotundifolia L. var. lancifolia Mert. & Koch | Campanula rotundifolia L. var. petiolata (A. DC.) J.K. Henry |
| Campanula rotundifolia L. var. velutina A. DC. | Campanula sacajaweana M.E. Peck |
| Campanula americana L. | Campanula americana L. var. illinoensis (Fresen.) Farw. |
| Canarina L. | Lobelia canbyi Gray |
| Campanula medium L. | Lobelia cliffortiana L. |
| Lobelia cardinalis L. | Cyanea hamatiflora Rock ssp. carlsonii (Rock) Lammers |
| Downingia yina Applegate | Campanula shetleri Heckard |
| Campanula exigua Rattan | Lobelia chinensis Lour. |
| Triodanis biflora (Ruiz & Pavn) Greene | Triodanis perfoliata (L.) Nieuwl. |
| Clermontia Gaud. | Clermontia leptoclada Rock var. holopsila F. Wimmer |
| Clermontia leptoclada Rock var. urceolata Rock | Clermontia furcata F. Wimmer |
| Clermontia mannii St. John | Clermontia waikoluensis St. John |
| Delissea fauriei Levl., non St. John | Clermontia montis-loa Rock var. tenuifolia Skottsberg |
| Clermontia parviflora Gaud. ex Gray var. grandis Rock | Clermontia parviflora Gaud. ex Gray var. intermedia Skottsberg |
| Clermontia caerulea Hbd. | Clermontia caerulea Hbd. ssp. brevidens (Skottsberg) St. John |
| Clermontia caerulea Hbd. var. brevidens Skottsberg | Clermontia caerulea Hbd. var. degeneri Skottsberg |
| Clermontia caerulea Hbd. var. flavescens (F. Wimmer) St. John | Clermontia caerulea Hbd. var. parvifolia Rock |
| Clermontia coerulea Hbd. [orthographic variant] | Clermontia coerulea Hbd. ssp. brevidens (Skottsberg) St. John [orthographic variant] |
| Clermontia coerulea Hbd. var. brevidens Skottsberg [orthographic variant] | Clermontia coerulea Hbd. var. degeneri Skottsberg [orthographic variant] |
| Clermontia coerulea Hbd. var. flavescens (F. Wimmer) St. John [orthographic variant] | Clermontia coerulea Hbd. var. parvifolia Rock [orthographic variant] |
| Clermontia konaensis St. John | Clermontia caerulea Hbd. var. greenwelliana F. Wimmer |
| Clermontia coerulea Hbd. var. greenwelliana F. Wimmer [orthographic variant] | Clermontia loyana Rock |
| Clermontia rockiana F. Wimmer | Clermontia clermontioides (Gaud.) Heller var. epiphytica Hochr. |
| Clermontia clermontioides (Gaud.) Heller var. hirsutiflora Rock | Clermontia earina St. John |
| Delissea filigera Wawra | Clermontia forbesii St. John |
| Clermontia hirsutinervis St. John | Clermontia molokaiensis St. John |
| Clermontia munroi St. John | Clermontia reticulata St. John |
| Clermontia subpetiolata St. John | Clermontia wailauensis St. John |
| Clermontia kohalae Rock var. hiloensis F. Wimmer | Clermontia kakeana Meyen var. orientalis St. John |
| Clermontia convallis F. Wimmer | Clermontia kohalae Rock var. robusta Rock |
| Clermontia paradisia F. Wimmer p.p. | Clermontia hawaiiensis (Hbd.) Rock var. grandis Rock |
| Clermontia lindseyana Rock var. livida Rock | Clermontia aspera F. Wimmer p.p. |
| Clermontia pallida Hbd. var. ramosissima Rock | Clermontia paradisia F. Wimmer p.p. |
| Clermontia parviflora Gaud. ex Gray var. umbraticola Skottsberg | Clermontia hanaensis St. John |
| Clermontia rosacea St. John | Clermontia clermontioides (Gaud.) Heller var. barbata (Rock) St. John |
| Clermontia peleana Rock ssp. singuliflora (Rock) Lammers | Clermontia tuberculata Forbes var. subtuberculata St. John |
| Clermontia parviflora Gaud. ex Gray var. calycina Rock | Clermontia waimeae Rock var. longisepala Rock |
| Clermontia waimeae Rock var. obovata Rock | Triodanis coloradoensis (Buckl.) McVaugh |
| Nemacladus pinnatifidus Greene | Githopsis specularioides Nutt. |
| Nemacladus capillaris Greene | Delissea laciniata Hbd. |
| Cyanea Gaud. | Cyanea lindseyana Rock var. livida Rock |
| Cyanea acuminata (Gaud.) Hbd. var. calycina Hosaka | Cyanea occultans St. John |
| Cyanea angustifolia (Cham.) Hbd. var. racemosa Hbd. | Clermontia aspera F. Wimmer p.p. |
| Cyanea coronata F. Wimmer | Cyanea lanceolata (Gaud.) Lammers, Givnish & Sytsma ssp. calycina (Cham.) Lammers, Givnish & Sytsma |
| Rollandia bidentata St. John | Rollandia calycina (Cham.) G. Don |
| Rollandia calycina (Cham.) G. Don var. kaalae (Wawra) F. Wimmer | Rollandia lanceolata Gaud. ssp. calycina (Cham.) Lammers |
| Rollandia lanceolata Gaud. var. tomentella (Wawra) F. Wimmer | Rollandia waianaeensis St. John |
| Cyanea haleakalaensis St. John | Rollandia crispa Gaud. |
| Rollandia crispa Gaud. var. muricata Rock | Cyanea grimesiana Gaud. ssp. cylindrocalyx (Rock) Lammers |
| Cyanea grimesiana Gaud. var. cylindrocalyx Rock | Cyanea dunbarii Rock [orthographic variant] |
| Delissea eleeleensis St. John | Cyanea angustifolia (Cham.) Hbd. var. hillebrandii Rock |
| Cyanea angustifolia (Cham.) Hbd. var. isabella F. Wimmer | Cyanea angustifolia (Cham.) Hbd. var. lanaiensis Rock |
| Cyanea angustifolia (Cham.) Hbd. var. tomentella Hbd. | Cyanea coriacea (Gray) Hbd. var. degeneriana F. Wimmer |
| Cyanea coriacea (Gray) Hbd. var. fauriei (Levl.) F. Wimmer | Cyanea gayana Rock var. wainihaensis Rock |
| Cyanea gayana Rock | Cyanea gayana Rock var. duvelii Rock |
| Cyanea multispicata Levl. | Cyanea bondiana (Rock) Rock |
| Cyanea degeneriana F. Wimmer | Cyanea densiflora (Rock) Rock |
| Cyanea holophylla Hbd. var. obovata Rock | Cyanea knudsenii Rock var. glabra F. Wimmer |
| Cyanea scabra Hbd. var. variabilis Rock p.p. | Cyanea grimesiana Gaud. var. hirsutifolia Rock |
| Cyanea grimesiana Gaud. var. obovata St. John | Delissea habenata St. John |
| Cyanea carlsonii Rock | Cyanea coriacea (Gray) Hbd. var. hardyi (Rock) F. Wimmer |
| Cyanea chockii Rock | Cyanea hirtella (Mann) Hbd. var. striata F. Wimmer |
| Cyanea hirtella (Mann) Hbd. var. subglabra F. Wimmer | Rollandia humboldtiana Gaud. |
| Cyanea spathulata (Hbd.) Heller ssp. longipetiolata Lammers | Delissea kolekoleensis St. John |
| Rollandia angustifolia (Hbd.) Rock | Rollandia angustifolia (Hbd.) Rock var. ochreata F. Wimmer |
| Cyanea bishopii Rock | Rollandia degeneriana F. Wimmer p.p. |
| Rollandia lanceolata Gaud. | Rollandia lanceolata Gaud. var. glaberrima F. Wimmer |
| Rollandia lanceolata Gaud. var. kipapaensis Hosaka | Rollandia lanceolata Gaud. var. rockii St. John & Hosaka |
| Rollandia lanceolata Gaud. var. viridiflora Rock | Cyanea leptostegia Gray var. velutina Skottsberg |
| Cyanea baldwinii Forbes & Munro | Rollandia degeneriana F. Wimmer p.p. |
| Rollandia lanceolata Gaud. var. brevipes F. Wimmer | Rollandia longiflora Wawra |
| Cyanea scabra Hbd. var. longissima Rock | Cyanea scabra Hbd. var. variabilis Rock p.p. |
| Cyanea gibsonii Hbd. | Cyanea atra Hbd. |
| Cyanea atra Hbd. var. lobata Rock | Cyanea bicolor St. John |
| Cyanea hanaensis St. John | Cyanea macrostegia Hbd. var. parvibracteata Rock |
| Cyanea macrostegia Hbd. var. viscosa Rock p.p. | Cyanea mariana F. Wimmer |
| Cyanea tritomantha Gray var. lydgatei Rock | Cyanea grimesiana Gaud. var. lydgatei Rock |
| Cyanea grimesiana Gaud. var. mauiensis Rock | Cyanea lobata Mann var. hamakuae Rock |
| Delissea grimesiana (Gaud.) St. John var. lydgatei (Rock) St. John | Cyanea coriacea (Gray) Hbd. var. serratifolia Rock |
| Cyanea dentata F. Wimmer | Cyanea grimesiana Gaud. var. munroi Hosaka |
| Rollandia parvifolia Forbes | Cyanea longipedunculata Rock |
| Cyanea megacarpa (Rock) Rock | Rollandia pinnatifida (Cham.) G. Don |
| Cyanea bryanii Rock | Cyanea crispohirta F. Wimmer |
| Cyanea fernaldii Rock | Cyanea noli-me-tangere Rock |
| Cyanea pulchra Rock | Cyanea rollandioides Rock |
| Clermontia haleakalensis Rock, non Cyanea haleakalensis St. John | Rollandia purpurellifolia Rock |
| Cyanea arborea Hbd. var. pycnocarpa Hbd. | Cyanea larrisonii Rock |
| Cyanea rockii F. Wimmer | Delissea rivularis (Rock) F. Wimmer |
| Cyanea holophylla Hbd. | Rollandia sessilifolia O. Deg. |
| Cyanea ferox Hbd. | Cyanea ferox Hbd. var. laevicalyx Skottsberg |
| Cyanea scabra Hbd. var. sinuata Rock | Cyanea ovatisepala F. Wimmer |
| Cyanea solenocalyx Hbd. var. latifolia F. Wimmer | Cyanea wailauensis Rock |
| Rollandia st.-johnii Hosaka | Cyanea nelsonii St. John |
| Cyanea quercifolia (Hbd.) F. Wimmer var. atropurpurea F. Wimmer | Cyanea stictophylla Rock var. inermis Rock |
| Cyanea regina (Wawra) Rock | Cyanea superba (Cham.) Gray var. velutina Rock |
| Cyanea knudsenii Rock | Cyanea sylvestris Heller var. eriantha (Skottsberg) F. Wimmer |
| Cyanea magnifica F. Wimmer | Cyanea submuricata F. Wimmer |
| Cyanea truncata (Rock) Rock var. juddii (Forbes) St. John | Campanula glomerata L. |
| Cyanea floribunda F. Wimmer | Delissea Gaud. |
| Delissea sinuata Hbd. ssp. lanaiensis (Rock) Lammers | Delissea sinuata Hbd. var. lanaiensis Rock |
| Delissea laciniata Hbd. var. parviflora Rock | Delissea undulata Gaud. ssp. kauaiensis Lammers |
| Delissea undulata Gaud. ssp. niihauensis (St. John) Lammers | Delissea subcordata Gaud. var. kauaiensis St. John |
| Delissea subcordata Gaud. var. obtusifolia Wawra | Delissea subcordata Gaud. var. waikaneensis St. John |
| Delissea subcordata Gaud. var. waralaeensis St. John | Delissea argutidentata F. Wimmer |
| Delissea konaensis St. John | Delissea undulata Gaud. ssp. undulata Gaud. [superfluous autonym] |
| Delissea undulata Gaud. var. argutidentata (F. Wimmer) F. Wimmer | Nemacladus rubescens Greene |
| Nemacladus rubescens Greene var. rubescens | Nemacladus rubescens Greene var. tenuis McVaugh |
| Lobelia dortmanna L. | Downingia bicornuta Gray |
| Downingia bicornuta Gray var. bicornuta | Downingia bicornuta Gray var. picta Hoover |
| Downingia concolor Greene ssp. brevior (McVaugh) Beauchamp | Downingia elegans (Dougl. ex Lindl.) Torr. var. corymbosa (A. DC.) Gray |
| Downingia humilis (Greene) Greene | Downingia willamettensis M.E. Peck |
| Downingia yina Applegate var. major McVaugh | Lobelia puberula Michx. |
| Lobelia puberula Michx. var. mineolana F. Wimmer | Lobelia puberula Michx. var. pauciflora Bush |
| Lobelia puberula Michx. var. puberula | Lobelia puberula Michx. var. simulans Fern. |
| Lobelia dunnii Greene | Lobelia dunnii Greene var. dunnii |
| Lobelia dunnii Greene var. serrata (Gray) McVaugh | Downingia pusilla (G. Don) Torr. |
| Campanula angustiflora Eastw. | Lobelia erinus L. |
| Cyanea eleeleensis (St. John) Lammers | Downingia elegans (Dougl. ex Lindl.) Torr. |
| Downingia elegans (Dougl. ex Lindl.) Torr. var. brachypetala (Gandog.) McVaugh | Downingia elegans (Dougl. ex Lindl.) Torr. var. elegans |
| Cyanea elliptica (Rock) Lammers | Campanula bononiensis L. |
| Legousia speculum-veneris (L.) Fisch. ex A. DC. | Trematolobelia Zahlbr. ex Rock |
| Legenere McVaugh | Legenere limosa (Greene) McVaugh |
| Cyanea fauriei Levl. | Downingia pulchella (Lindl.) Torr. |
| Porterella carnosula (Hook. & Arn.) Torr. | Campanula floridana S. Wats. ex Gray |
| Lobelia floridana Chapman | Lobelia flaccidifolia Small |
| Downingia ornatissima Greene | Downingia ornatissima Greene var. eximia (Hoover) McVaugh |
| Downingia ornatissima Greene var. ornatissima | Clermontia kakeana Meyen |
| Lobelia fenestralis Cav. | Gadellia Schulkina |
| Campanula lactiflora Bieb. | Lobelia appendiculata A. DC. var. gattingeri (Gray) McVaugh |
| Campanula latifolia L. | Cyanea leptostegia Gray |
| Cyanea macrostegia Hbd. ssp. gibsonii (Hbd.) Lammers | Cyanea asarifolia St. John |
| Githopsis specularioides Nutt. ssp. candida Ewan | Githopsis gilioides Ewan |
| Githopsis filicaulis Ewan | Githopsis specularioides Nutt. var. glabra Jepson |
| Githopsis calycina Benth. | Githopsis calycina Benth. var. hirsuta Benth. |
| Githopsis specularioides Nutt. var. hirsuta Nutt. | Lobelia glandulosa Walt. |
| Nemacladus glanduliferus Jepson | Nemacladus glanduliferus Jepson var. glanduliferus |
| Nemacladus glanduliferus Jepson var. orientalis McVaugh | Lobelia remyi Rock |
| Downingia laeta (Greene) Greene | Lobelia siphilitica L. |
| Lobelia siphilitica L. var. ludoviciana A. DC. | Lobelia siphilitica L. var. siphilitica |
| Clermontia singuliflora (Rock) Rock | Campanula griffinii Morin |
| Clermontia fauriei Levl. | Cyanea pilosa Gray |
| Cyanea pilosa Gray ssp. longipedunculata (Rock) Lammers | Cyanea pilosa Gray ssp. pilosa |
| Campanula chamissonis Fedorov | Clermontia tuberculata Forbes |
| Cyanea aculeatiflora Rock | Lobelia grayana F. Wimmer |
| Clermontia pyrularia Hbd. | Clermontia samuelii Forbes |
| Clermontia samuelii Forbes ssp. hanaensis (St. John) Lammers | Clermontia samuelii Forbes ssp. samuelii |
| Asyneuma Griseb. & Schenk | Downingia insignis Greene |
| Cyanea scabra Hbd. | Delissea fallax Hbd. |
| Heterocodon Nutt. | Specularia rariflora (Nutt.) McVaugh |
| Clermontia lindseyana Rock | Hippobroma G. Don |
| Isotoma longiflora (L.) K. Presl | Laurentia longiflora (L.) Peterm. |
| Triodanis holzingeri McVaugh | Cyanea acuminata (Gaud.) Hbd. |
| Downingia bella Hoover | Howellia Gray |
| Campanula parryi Gray var. idahoensis McVaugh | Lobelia inflata L. |
| Jasione L. | Cyanea stictophylla Rock |
| Clermontia clermontioides (Gaud.) Heller | Clermontia clermontioides (Gaud.) Heller ssp. clermontioides |
| Clermontia clermontioides (Gaud.) Heller ssp. rockiana (F. Wimmer) Lammers | Cyanea fissa (Mann) Hbd. |
| Cyanea fissa (Mann) Hbd. ssp. fissa | Cyanea fissa (Mann) Hbd. ssp. gayana (Rock) Lammers |
| Delissea rhytidosperma Mann | Trematolobelia kauaiensis (Rock) Skottsberg |
| Cyanea recta (Wawra) Hbd. | Cyanea giffardii Rock |
| Clermontia drepanomorpha Rock | Cyanea kolekoleensis (St. John) Lammers |
| Trematolobelia macrostachys (Hook. & Arn.) Zahlbr. | Clermontia carinifera Levl. |
| Delissea subcordata Gaud. | Lobelia gaudichaudii A. DC. |
| Lobelia gaudichaudii A. DC. ssp. gaudichaudii | Lobelia gaudichaudii A. DC. ssp. koolauensis (Hosaka & Fosberg) Lammers |
| Cyanea crispa (Gaud.) Lammers, Givnish & Sytsma | Lobelia hypoleuca Hbd. |
| Cyanea kunthiana (Gaud.) Hbd. | Delissea lanaiensis (Rock) Lammers |
| Cyanea lanceolata (Gaud.) Lammers, Givnish & Sytsma | Trematolobelia grandifolia (Rock) O. Deg. |
| Clermontia calophylla F. Wimmer | Lobelia kauaensis (Gray) Heller |
| Trematolobelia singularis St. John | Cyanea coriacea (Gray) Hbd. |
| Cyanea undulata Forbes | Delissea niihauensis St. John ssp. kauaiensis (Lammers) Lammers |
| Delissea undulata Gaud. | Legousia Dur. |
| Githopsis latifolia Eastw. | Specularia speculum-veneris (L.) Tanfani |
| Cyanea kuhihewa Lammers | Cyanea lindseyana Rock |
| Cyanea linearifolia Rock | Lobelia L. |
| Lobelia georgiana McVaugh | Lobelia glandulifera (Gray) Small |
| Lobelia gattingeri Gray | Lobelia brachypoda (Gray) A. DC. ex Small |
| Lobelia cardinalis L. ssp. graminea (Lam.) McVaugh | Lobelia cardinalis L. var. graminea (Lam.) McVaugh |
| Lobelia cardinalis L. var. meridionalis Bowden | Lobelia cardinalis L. var. multiflora (Paxton) McVaugh |
| Lobelia cardinalis L. var. phyllostachya (Engelm.) McVaugh | Lobelia cardinalis L. var. propinqua (Paxton) Bowden |
| Lobelia cardinalis L. var. pseudosplendens McVaugh | Lobelia fulgens Humb. & Bonpl. ex Willd. |
| Lobelia splendens Humb. & Bonpl. ex Willd. | Lobelia costata F. Wimmer |
| Lobelia hillebrandii Rock var. paniculata Rock | Lobelia erinoides L. |
| Lobelia halei Small | Lobelia gaudichaudii A. DC. var. koolauensis Hosaka & Fosberg |
| Lobelia gaudichaudii A. DC. var. gloria-montis (Rock) St. John & Hosaka | Lobelia gaudichaudii A. DC. var. longibracteata Rock |
| Lobelia gloria-montis Rock var. molokaiensis O. Deg. | Lobelia hypoleuca Hbd. var. heterocarpa F. Wimmer |
| Lobelia hypoleuca Hbd. var. rockii St. John & Hosaka | Lobelia kalmii L. var. strictiflora Rydb. |
| Lobelia strictiflora (Rydb.) Lunell | Lobelia gaudichaudii A. DC. var. kauaensis Gray |
| Lobelia hillebrandii Rock var. monostachya Rock | Lobelia niihauensis St. John var. forbesii St. John |
| Lobelia niihauensis St. John var. meridiana St. John | Lobelia tortuosa Heller |
| Lobelia tortuosa Heller var. haupuensis St. John | Lobelia tortuosa Heller var. intermedia St. John |
| Tupa portoricensis Vatke | Lobelia puberula Michx. ssp. pauciflora (Bush) Bowden |
| Lobelia reverchonii B.L. Turner | Lobelia assurgens L. var. portoricensis (A. DC.) Urban |
| Tupa robusta (Graham) A. DC. [excluded] | Lobelia hirtella (Gray) Greene |
| Lobelia leptostachys A. DC. | Lobelia bracteata Small |
| Lobelia spicata Lam. var. originalis McVaugh | Lobelia spicata Lam. var. parviflora Gray |
| Lobelia salicina auct. non Lam. [misapplied] | Cyanea dolichopoda Lammers & Lorence |
| Nemacladus longiflorus Gray | Nemacladus longiflorus Gray var. breviflorus McVaugh |
| Nemacladus longiflorus Gray var. longiflorus | Lobelia elongata Small |
| Hippobroma longiflora (L.) G. Don | Cyanea mannii (Brigham) Hbd. |
| Cyanea pycnocarpa (Hbd.) F. Wimmer | Cyanea profuga Forbes |
| Cyanea marksii Rock | Downingia concolor Greene |
| Downingia concolor Greene var. brevior McVaugh | Downingia concolor Greene var. concolor |
| Downingia concolor Greene var. tricolor (Greene) Jepson | Campanula aparinoides Pursh |
| Clermontia micrantha (Hbd.) Rock | Cyanea comata Hbd. |
| Cyanea mauiensis (Rock) Lammers | Lobelia hillebrandii Rock |
| Clermontia montis-loa Rock | Cyanea mceldowneyi Rock |
| Gadellia lactiflora (Bieb.) Schulkina | Parishella californica Gray |
| Cyanea procera Hbd. | Brighamia rockii St. John |
| Campanula lasiocarpa Cham. | Nemacladus montanus Greene |
| Campanula sharsmithiae Morin | Cyanea superba (Cham.) Gray |
| Cyanea superba (Cham.) Gray ssp. regina (Wawra) Lammers | Cyanea superba (Cham.) Gray ssp. superba |
| Cyanea munroi (Hosaka) Lammers | Nemacladus rubescens Greene var. interior (Munz) McVaugh |
| Delissea niihauensis St. John ssp. niihauensis | Lobelia niihauensis St. John |
| Lobelia nuttallii J.A. Schultes | Cyanea calycina (Cham.) Lammers |
| Clermontia oblongifolia Gaud. | Clermontia oblongifolia Gaud. ssp. brevipes (F. Wimmer) Lammers |
| Clermontia oblongifolia Gaud. ssp. mauiensis (Rock) Lammers | Clermontia oblongifolia Gaud. ssp. oblongifolia |
| Cyanea hardyi Rock | Lobelia oahuensis Rock |
| Cyanea humboldtiana (Gaud.) Lammers, Givnish & Sytsma | Cyanea quercifolia (Hbd.) F. Wimmer |
| Campanula piperi T.J. Howell | Nemacladus secundiflorus G.T. Robbins |
| Lobelia kalmii L. | Campanula scouleri Hook. ex A. DC. |
| Lobelia appendiculata A. DC. | Lobelia appendiculata A. DC. var. appendiculata |
| Lobelia spicata Lam. | Lobelia spicata Lam. var. campanulata McVaugh |
| Lobelia spicata Lam. var. hirtella Gray | Lobelia spicata Lam. var. leptostachys (A. DC.) Mackenzie & Bush |
| Lobelia spicata Lam. var. scaposa McVaugh | Lobelia spicata Lam. var. spicata |
| Cyanea arborea Hbd. | Cyanea koolauensis Lammers, Givnish & Sytsma |
| Cyanea purpurellifolia (Rock) Lammers, Givnish & Systma | Lobelia yuccoides Hbd. |
| Cyanea membranacea Rock | Parishella Gray |
| Campanula parryi Gray | Campanula parryi Gray var. parryi |
| Campanula persicifolia L. | Clermontia peleana Rock |
| Clermontia peleana Rock var. peleana | Lobelia homophylla F. Wimmer |
| Cyanea rivularis Rock | Platycodon A. DC. |
| Platycodon grandiflorum (Jacq.) A. DC. [orthographic variant] | Cyanea pohaku Lammers |
| Cyanea solanacea Hbd. | Porterella Torr. |
| Triodanis lamprosperma McVaugh | Cyanea horrida (Rock) O. Deg. & Hosaka |
| Cyanea solenocalyx Hbd. | Cyanea platyphylla (Gray) Hbd. |
| Cyanea truncata (Rock) Rock | Cyanea macrostegia Hbd. |
| Cyanea macrostegia Hbd. ssp. macrostegia | Campanula rapunculus L. |
| Campanula rapunculoides L. | Heterocodon rariflorum Nutt. |
| Cyanea dunbariae Rock | Cyanea remyi Rock |
| Cyanea longiflora (Wawra) Lammers, Givnish & Systma | Campanula robinsiae Small |
| Lobelia robusta Graham | Lobelia robusta Graham var. portoricensis (A. DC.) McVaugh |
| Lobelia robusta Graham var. robusta Graham [excluded] | Rollandia Gaud. |
| Rollandia ambigua G. Don | Campanula scabrella Engelm. |
| Lobelia rotundifolia Juss. ex A. DC. | Cyanea hirtella (Mann) Hbd. |
| Githopsis diffusa Gray | Githopsis diffusa Gray ssp. candida (Ewan) Morin |
| Githopsis diffusa Gray ssp. diffusa | Githopsis diffusa Gray ssp. filicaulis (Ewan) Morin |
| Githopsis diffusa Gray ssp. robusta Morin | Cyanea sessilifolia (O. Deg.) Lammers |
| Cyanea pinnatifida (Cham.) F. Wimmer | Jasione montana L. |
| Cyanea shipmanii Rock | Lobelia brevifolia Nutt. ex A. DC. |
| Githopsis pulchella Vatke | Githopsis pulchella Vatke ssp. campestris Morin |
| Githopsis pulchella Vatke ssp. pulchella | Githopsis pulchella Vatke ssp. pulchella var. glabra (Jepson) Morin |
| Githopsis pulchella Vatke ssp. pulchella var. pulchella | Githopsis pulchella Vatke ssp. serpentinicola Morin |
| Downingia montana Greene | Lobelia laxiflora Kunth |
| Lobelia laxiflora Kunth var. angustifolia A. DC. | Nemacladus interior (Munz) G.T. Robbins |
| Nemacladus sigmoideus G.T. Robbins | Nemacladus gracilis Eastw. |
| Triodanis leptocarpa (Nutt.) Nieuwl. | Campanula divaricata Michx. |
| Delissea lauliiana Lammers | Clermontia parviflora Gaud. ex Gray |
| Delissea parviflora Hbd. | Nemacladus ramosissimus Nutt. |
| Cyanea glabra (F. Wimmer) St. John | Lobelia amoena Michx. |
| Lobelia amoena Michx. var. amoena | Lobelia amoena Michx. var. glandulifera Gray |
| Wahlenbergia marginata (Thunb.) A. DC. | Cyanea aspleniifolia (Mann) Hbd. |
| Cyanea cylindrocalyx (Rock) Lammers | Cyanea grimesiana Gaud. |
| Cyanea grimesiana Gaud. ssp. grimesiana | Cyanea grimesiana Gaud. ssp. obatae (St. John) Lammers |
| Cyanea kahiliensis (St. John) Lammers | Cyanea spathulata (Hbd.) Heller |
| Campanula punctata Lam. | Campanula patula L. |
| Cyanea st.-johnii (Hosaka) Lammers, Givnish & Systma | Nemacladus rigidus Curran |
| Cyanea habenata (St. John) Lammers | Cyanea longissima (Rock) St. John |
| Campanula californica (Kellogg) Heller | Clermontia waimeae Rock |
| Triodanis texana McVaugh | Nemacladus Nutt. |
| Lobelia portoricensis (Vatke) Urban | Downingia cuspidata (Greene) Greene ex Jepson |
| Cyanea copelandii Rock | Cyanea copelandii Rock ssp. copelandii |
| Cyanea copelandii Rock ssp. haleakalaensis (St. John) Lammers | Trematolobelia wimmeri O.& I. Deg. |
| Trematolobelia macrostachys (Hook. & Arn.) Zahlbr. var. haleakalaensis St. John | Specularia biflora (Ruiz & Pavn) Fisch. & C.A. Mey. |
| Triodanis perfoliata (L.) Nieuwl. var. biflora (Ruiz & Pavn) Bradley | Specularia holzingeri (McVaugh) Fern. |
| Specularia lamprosperma (McVaugh) Fern. | Specularia leptocarpa (Nutt.) Gray |
| Legousia perfoliata (L.) Britt. | Specularia perfoliata (L.) A. DC. |
| Triodanis perfoliata (L.) Nieuwl. var. perfoliata (L.) Nieuwl. [superfluous autonym] | Githopsis tenella Morin |
| Wahlenbergia linarioides (Lam.) A. DC. | Campanula carpatica Jacq. |
| Nemacladus twisselmannii J.T. Howell | Triodanis Raf. ex Greene |
| Lobelia vivaldii Lammers & Proctor | Cyanea sylvestris Heller |
| Wahlenbergia Schrad. ex Roth | Wahlenbergia gracilis (G. Forst.) A. DC. |
| Delissea sinuata Hbd. | Lobelia monostachya (Rock) Lammers |
| Lobelia dunbarii Rock | Lobelia dunbarii Rock ssp. dunbarii |
| Lobelia dunbarii Rock ssp. paniculata (Rock) Lammers | Clermontia multiflora Hbd. |
| Cyanea lobata Mann | Cyanea lobata Mann ssp. lobata |
| Clermontia pallida Hbd. | Clermontia persicifolia Gaud. |
| Cyanea parvifolia (Forbes) Lammers, Givnish & Systma | Clermontia kohalae Rock |
| Howellia aquatilis Gray | Cyanea hamatiflora Rock |
| Cyanea hamatiflora Rock ssp. hamatiflora | Lobelia paludosa Nutt. |
| Campanula wilkinsiana Greene | Cyanea salicina H. Lv. |
| Campanula lanata Friv. | Clermontia fulva Levl. |
| Campanula aurita Greene |
