| 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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