| Noms géographiques | Noms scientifiques botaniques | Noms bibliques | Sobriquets | Noms d' établissements |
| Noms historiques | Noms scientifiques zoologiques | Noms fictifs | Pseudonymes |
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| Nom scientifique | Nom malgache |
| Gaertnera obovata | tsitirontafika |
| Gaertnera phanerophlebia | tsitirontafika, tsitsirontafika |
| Gaertnera sp. | tanatananala |
| Gambeya boiviniana var. | famelona |
| Gambeya boiviniana | famelo, famelomana, famelomanafotsy, famelona, famelonamena, fankaboky, rahiaka, raiheka, reheky, rehiaka, rehiakavavy, rehieky, voampamelona, voandrahika |
| Ganoderma applanatum | aleokomaty |
| Garcinia Chapelieri | kijy, kimba |
| Garcinia asterandra | hazohinina |
| Garcinia chapelieri | azinavavy, ditsaka, hazinavavy, hazinina, haziñy, hazomasina, ravimasina, varanto, vazohany, voehazontsaha |
| Garcinia gerrardii | voankandrina |
| Garcinia pauciflora var. | vongo |
| Garcinia pauciflora | bongo, bongofotsy, bongondrana, hazinimena, kijimboalavo, kijy, letsaky, mongo, rabongovavy, voaditsaka, voahandritsahona, voarandritsahona, vongo |
| Garcinia sp. | vahaso-vory |
| Garcinia verrucosa | hazinina, kijamboalavo, letsaky, litsaka, vongo, vongolahy |
| Gardenia rutenbergiana | ambokombe |
| Gardenia suavissima | mahabiby |
| Gardenia succosa | amokombe |
| Gastonia emirnensis | ambonambo |
| Geissorhiza bojeri | manolodravy, mokonakanga, takorabolonakoho, tambolokoko, telovitranankaratra |
| Geniosporum madagascariense | robakary, romba, rombankary, tsontsonala, tsotsonala |
| Geniosporum membranaceum | sariromba |
| Geniosporum thymifolium | sofintotozy, taolamandeha |
| Genipa rutenbergiana | karipedahy, kiripedahy, kiripikala |
| Geranium simense | mahatanandofotsy |
| Geranium sinense | laratanana, lavatanana, tongotramboabe, viliabetsaonantanety |
| Gerbera elliptica | fotsiavadika, fotsiavadina, fotsivadihana, kelivoloina, kimamikisoa, kimavo, mavoravina |
| Gerbera piloselloides | fotsivolondrenibe, ioboka, sakaizanankizy |
| Girardinia erosa | akihy |
| Gisekia pharnaceoides | kimenamena, masondroso |
| Givotia madagascariensis | farafake |
| Givotia madagascariensis | farafaka, farafake, farafatse, farafatsy, farafotse, farafotsy, farahafatra, fengoky, sefo |
| Gladiolus garnieri | fodilahimena, tarimanga, tenimpody, tenina, tenindahimena, tenindahy, tsividina |
| Gladiolus garnierii | kindaindaivola, kisesidahy, kitenendahy, kitenindahy, lakimbero |
| Gladiolus luteus | mokonakanga, tambolokoko |
| Gladiolus sp. | tenimbavy |
| Gleichenia madagascariensis | ampangantsirika, ampangatsirika |
| Gleichenia polypodioides | ampangantsirika, ampangatsirika |
| Glochidion sambiranense | faritsoka |
| Gloriosa virescens | aoliampela, sakaveronala, sakavirondava, saritavy, sariviky |
| Gluta tourtour | torotoro |
| Gnaphalium luteoalbum | ahitrakoho, ahitrakohovavy, tranomanditra |
| Gnaphalium undulatum | ahepotsy, ahipotsy |
| Gnidia danguyana | avohahafotra, hafotra, havoha |
| Gomphocarpus cornutus | fanoro, fanova, matsivina, poaka |
| Gomphocarpus fruticosus | fandemy, faniry, fanoro, matsivina, poaka, tandemy, voamasivena |
| Gonioma malagasy | mita, tsialafikena, tsiandala, tsivoantolaka, tsivoatoloka |
| Gonocrypta grevei | herotra, herotsa, herotsazo, kompitsa, kopitsa, langalora |
| Gossypium arboreum var. | foly, hasibe, hasy, landihazo, tsiahilika |
| Gossypium arboreum | hasina |
| Gossypium barbadense | hasina |
| Gossypium brevilanatum | hasikitika, hasy, sarihasy |
| Gossypium sp. | tsahilika |
| Gouania glandulosa | bevory, tsivory, vahempisoroka, voanasivory |
| Gouania laxiflora | vahifoty |
| Gouania lineata | vatomarolahy |
| Gouania mauritiana subsp. | bevony, bevory, mojongo |
| Gouania mauritiana subsp. | mahamavany, mahimavany, vahefisorona, vahifosorona, vahimavany, vahipisoroky |
| Gouania mauritiana | mahavany |
| Grangea maderaspatana | montomaso, motomaso, voamontomaso |
| Grangeopsis perrieri | mafaitraty |
| Grangeria porosa | maivalafika |
| Gravesia capitata | totroka |
| Gravesia guttata | volonakanga |
| Gravesia lamiana | adekibo, odikibo |
| Gravesia lanceolata | vahimboho, vahivoho |
| Grevea madagascariensis | kabokala, kipatrozona, mamalifolahy, pepana, tapatrozona |
| Grewia barorum | malimatsa |
| Grewia brideliifolia | hafokalalao, hafotrambaniala, hafotrandriana, hafotrantsiotry, sely, voararano |
| Grewia calvata | hafokorana, hafokorona, hafotra, hofokorana, zarotaty, zorotaty, zozotaty |
| Grewia cuneifolia | hafopotsy |
| Grewia faucherei | hafokalalao, hafotrafotsy |
| Grewia glandulosa | makoloda, malimatra |
| Grewia grevei | komokomoke |
| Grewia macrophylla | makoloda |
| Grewia microcyclea | hazafy, hazofotsy, zaha |
| Grewia polypyrena | hafomerika, merika |
| Grewia repanda | sely |
| Grewia rhomboides | sely |
| Grewia sahafariensis | sely |
| Grewia sely | sely |
| Grewia serrulata | selibe |
| Grewia sp. | hafotsasely, sele |
| Grewia trinervata | hafomerika, merika, sely |
| Grewia | sele |
| Guettarda speciosa | tambaribarisa |
| Gussonea perrieri | velomiaty |
| Gymnosphaera boivinii | ampangahazo |
| Gymnosphaera melleri | ampangahazo |
| Gymnosporia brachystachya | toho |
| Gymnosporia commiphoroides | roitsokina, sarintsoa |
| Gymnosporia crataegina | roifantaka |
| Gymnosporia divaricata | fantsimbala, fantsy, mangina, raifantaka, roifantaka, roifatara, roifotsy |
| Gymnosporia leptopus var. | sengatsa |
| Gymnosporia leptopus | fantsy, fatsimbala, roifantaka, roifotsy |
| Gymnosporia linearis | fatikakoho, fatsinakoho, filofilo, singilofotsy, tsingilo, tsingilofilo, tsingilofilofotsy, tsingilofoty, tsingolofilo |
| Gymnosporia polyacantha | filofilondranto |
| Gymnosporia polyacanthus | tsingilofilofilo |
| Gymnosporia trigyna | sarintsoa, volanany |
| Gyrocarpus americanus | beholitse, kapaipoty, mafay |
| Gyrostipula foveolata | molompangady, molopangady, somondranto, valompangadisalasalaravina, valotra |
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