| 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 | 
| Radamaea montana | tambarasaha, tambaritsahona | 
| Randia talangninia | amokombe, talañinia, voantalanina | 
| Ranunculus multifidus | aforano | 
| Ranunculus pinnatus subsp. | afotany | 
| Ranunculus pinnatus | aforano, haforano, kelimahery, odiandoha, tongotramboabe | 
| Rapanea erythroxyloides | hazontoho, hazontohonala | 
| Raphanus sativus | radisa | 
| Raphia ruffia | angarata, bao, beadala, bikoa, felipomby, fiara, fomba, fombanala, fomby, hisadrofia, horojy, hovaka, kiran-drofia, maivanaty, maranabo, mofia, rafia, raofia, riba, rofia, voampiso, voarafia | 
| Raphidiocystis brachypoda | tarosarosa, vahinambaramaty, vahinamboaromoty, vahivorala, vavorakala | 
| Rapona tiliifolia | mafaimenarovy, rainibolafotsy, rililo, vatry | 
| Rauvolfia capuronii | hazomalemy, tangenala | 
| Rauvolfia confertiflora | ento, fekabe, hento, hentona, heto, hiba, hibaky, rehiba, rehimba | 
| Rauvolfia media | antalihazo, fihany, kabokala, mafaikopaka, mampoly, ndrambafoaky, tsipatikala | 
| Rauvolfia obtusiflora | hamotandrano, kaboka, kabokala, tambahay, tangenala | 
| Ravenala madagascariensis | akondrohazo, antandro, antrandra, bakabia, bemavo, fitroka, fontsimavo, fontsy, hazobaka, hodokembo, honkodambo, honkona, kasaka, lamaka, lovia-ravimpotsy, mahabevola, mahabevolana, mandravalana, ontsy, rapaka, ravimpotsy, ravina, ravinala, voadora | 
| Ravenea amara | mafaikely | 
| Ravenea glauca | lafa, ravina | 
| Ravenea madagascariensis | anivo | 
| Ravenea rivularis | akoraka, bakaly, gora, gory, ravina | 
| Ravenea robustior var | kona | 
| Ravenea robustior var. | kono | 
| Ravenea robustior | anivo, bokombio, loharanga, vokabe, vokaky | 
| Ravensara acuminata | ravintsara, tavololavaravina, tavolopina, tavolorano | 
| Ravensara acutifolia | molaliambo, varongy | 
| Ravensara anisata | avozo, havozo | 
| Ravensara aromatica | avozo, havozomangidy, havozomanitra, hazomanga, hazomangalahy, hazomanitra, laposinty, ravintsara, tavolomanitra, voaravintsara | 
| Ravensara coriacea | tavololahy, tavolomavo, tavolopika, tavolopiky, tavolopina | 
| Ravensara crassifolia | tavoloboriravina, tavolomainty, tavolomalama, tavolomena, tavolomenaravina, tavolomolaliambo | 
| Ravensara dealbata | moridrano, tavolomenaravina | 
| Ravensara elliptica | tavolohetika, tavolopiky | 
| Ravensara flavescens | sary, tavololahy, tavolomalama, tavolomavoravina, tavolopina, tavolosavy | 
| Ravensara floribunda | maheriampatrana, mampahy, tavolobelelo, tavolomalama, tavolomavo, tavolomenalaingo, tavolopika, tavolopina, tavolosariaka, tavolosavy, tavolovavy | 
| Ravensara gracilis | kabijalahy, papy, tavolomena | 
| Ravensara impressa | tavoloberavina, tavololavaravina | 
| Ravensara laevis | tavolopina, tavolopiñy | 
| Ravensara lastellei | hafotrarano, mafotrarano, tavolohazo, tavolomalama, tavolompina, tavolopiana, tavolopina | 
| Ravensara oblonga | tavolohazo | 
| Ravensara ovalifolia | molaliambo, tavoloazo, tavolohazo, tavolopina | 
| Ravensara pauciflora | hazotavolo, tavolomolaliambo, tavolopika | 
| Ravensara perareolata | molaliambo, tavoloberavina | 
| Ravensara perrieri | kabijalahy, kabitsalahy, kabitso, kabitsolahy, manavodrevo, pelamainty, saripapy, sary, tavaratra, tavolopika, varongy | 
| Ravensara pervillei | hazomainty, hazotavolo, tavolohazo, tavololanomby, tavololavaravina, tavololavaridana, tavolomaitso, tavolomalady, tavolomalama, tavolorano | 
| Ravensara polyneura | tavolompina, tavolopiana, tavolopika, tavoloravimanga | 
| Ravensara retusa | molaliambo, tavolomadinidravina, tavolomavoravina, tavolopika, tavolopina, tavolosary, tavolotitina | 
| Ravensara subtriplinervia | hazomanga, tafonona, tavolohazo, tavolomena, tavolosary | 
| Reissantia angustipetala | fanolehana | 
| Remirea maritima | bararatandriaka | 
| Remusatia vivipara | saonjondambo | 
| Rhamphicarpa longiflora | angamay | 
| Rhaphispermum gerardioides | reniomby, tsiavaramonina | 
| Rheedia aphanophlebia | bedity, fantsikatra, fasikahitra | 
| Rheedia arenicola | tsimatimanota | 
| Rheedia calcicola | letsaky | 
| Rheedia excelsa | bongo, mongo | 
| Rheedia madagascariensis | bongo, mongo, vavongo, voavongo, vongo, vongolahy | 
| Rheedia pedicellata | ditsaky, tsimatimanota | 
| Rheedia pervillei | letsaky, tsimatimanota, tsimatomanota | 
| Rheedia sp. | vahaso-vory | 
| Rheedia thouvenotii | voahandry | 
| Rhigozum madagascariense | hazontaha | 
| Rhinacanthus osmospermus | ravinalakely, voanalakely | 
| Rhipsalis cassytha | ramirondra | 
| Rhipsalis horrida | vahilotso | 
| Rhizophora mucronata | honko, honkolahy, honkovavy, konko, mikoko, tanga, tangalahy, tangandahy, voandrano | 
| Rhodocodon madagascariensis | famonototozy, kilobaloba, sahondra, tapabatana | 
| Rhodocodon urgineoides | goake | 
| Rhodocolea boivinii | volimpoly | 
| Rhodocolea racemosa | hitsikitsika, kitsikitsika, lomontsohy, rehitsika, tsetsefinantsoimenafelana | 
| Rhodocolea telfairiae | hazonkitsikitsika, hindramena, hitsika, hitsikitsika, hitsy, kifatatra, kifatra, kitsikitsika, rehitsika | 
| Rhodolaena acutifolia | manasavelona, menahihilahy, menahilahy, tsimahamasatsokinafotsy | 
| Rhodolaena altivola | forombody, fotona, tafotona, tsimahamasatsokina | 
| Rhodolaena bakeriana | anjananjana, arina, forombody, fotoana, fotomadinidravina, fotona, pikazana, tananampotsy, tavaratra | 
| Rhodolaena humblotii | fotona, hazomafana, malemisisika, voandrozana | 
| Rhodolaena rotundifolia | voantalanina | 
| Rhodosepala pauciflora | tamborokisoa | 
| Rhopalocarpus alternifolius | andrengitra, hafotrakora, mantaditra | 
| Rhopalocarpus binervius | lombiry | 
| Rhopalocarpus coriaceus var. | tsivakimbinato | 
| Rhopalocarpus coriaceus var. | mantaditra | 
| Rhopalocarpus coriaceus | havohaberavina, hazondandy, hazondrigisy, mantaditra, taolandambo, tavia, taviaberavina, taviavavy, tsilavimbinato, tsivakimbinato | 
| Rhopalocarpus louvelii var. | havohamadinikaravina | 
| Rhopalocarpus louvelii | hafotrakora, havoha, lombiry, montaditra, tavia, tavialahy | 
| Rhopalocarpus lucidus | hazondrenetsy, hazondrengetsy, hazondringitra, rengitra, rengitrabe, talafotsy, talafoty, taolafoty | 
| Rhopalocarpus macrorhamnifolius | fanondambo, hafotrakora, hafotravoha, ravinaviotra, rengitra, sariringitra, sary, tandria | 
| Rhopalocarpus pseudothouarsianus | hafotrakora, mantaditra, tavia | 
| Rhopalocarpus similis | hafotrakanga, hazondringitra, hazorengitra, lombirohazo, raingitravavy, rengitra, rengitravavy, sariringitra, taolandambo | 
| Rhopalocarpus suarezensis | selivato | 
| Rhopalocarpus thouarsianus | hafotrakoraberavina, lombiriberavina | 
| Rhopalocarpus triplinervius | manondroala, zambo | 
| Rhopalocarpus undulatus | andrengitra, lombiroala | 
| Rhopalopilia perrieri | malainavotsa, maleny | 
| Rhopalopilia umbellulata | arety | 
| Rhus perrieri | mabiboberavina | 
| Rhus taratana | maharovolona, malemilahy, maroavolona, marovolona | 
| Rhus thouarsii | ditiny | 
| Rhynchelytrum repens | ahikongona, ahipody, menapaka | 
| Rhynchelytrum roseum | ahitsiriry | 
| Rhynchosia cyanosperma | hazovongy | 
| Rhynchosia trichocephala | vahehataka, vahinataka | 
| Rhynchospora aurea | vendrafotsy, venga, vindanamalona | 
| Rhynchospora candida | ahipisaka | 
| Rhytachne caespitosa | forona, horondrano, kifafadrano, kifafarano, kifoforano | 
| Ricinus communis | fampinonoana, kimanga, kinamena, kinana, kinanamena, tanantanamanga, tanatana, tanatanamanga, tanatanamena, tanatanankisoa, tseroka | 
| Rinorea angustifolia | azotsibanibany, fotsialina, hazoharaky, hazombalala, hazompasy, hazondamoka, hazondamokana, hazondimohilahy, rondro, sarikofafa, tsilioka, tsinoronoro, voafotsindrano | 
| Rinorea arborea f. | hazondimohivavy, tandidiha | 
| Rinorea arborea | hafopotsy, voakevo, voaseva | 
| Rinorea auriculata | ampoliandrano, kimbanala, lolobemivahariva, sariletsaky | 
| Rinorea bullata | hazomamy | 
| Rinorea greveana | azompasiantetihy, fopo, hazofasy, hazofolo, hazoharaky, hazompasiantely, hazompasy, hazondemoha, hazondomohina, hazondomohy, hazotsimpidika, limohe, maroampototra, tsatsaky, tsilikantsifaka, tsimpidika, tsivokintsifaka, tsokaomby | 
| Rinorea ilicifolia | fitoriala, randropody, reampilahy, reampy, rehampy, sibabe, tsibabena | 
| Rinorea longipes | hazompasy | 
| Rinorea rubra | maimasela, mainasela | 
| Rinorea spinosa | hazombato | 
| Rinorea squamosa | dikany, fotsialina, hazondomohina, rengitra, tsibabeny | 
| Rinorea urschii | hazodomohina | 
| Roccella montagnei | somotsala | 
| Rosa chinensis | vonindraozy | 
| Rosa sp. | raozy | 
| Rottboellia exalta | kalay | 
| Roupellina boivinii var. | lalondona, tambio | 
| Roupellina boivinii | befe, hiba, kabokala, lalondo, lalondona, lalonta, manida, pepolahy, saritangena | 
| Rourea orientalis | fitsongo, kitrongo, kitsongo, kitsongolahy, kotsongo, sifaka, voampika | 
| Rourea platysepala | vahijohy, voampika | 
| Rubus apetalus | roifotsy, roimainty, roina, voaroimainty, voarointsaka | 
| Rubus fruticosus | roimainty | 
| Rubus idaeus | voaroimbazaha | 
| Rubus myrianthus | roimainty, voaroimainty | 
| Rubus pauciflorus | roimainty, voaroimainty, voarointsilo | 
| Rubus rosifolius | voarohitsaka, voaroimena, voaroitanala | 
| Ruellia ansericollis | tandinditsy | 
| Ruellia dequairei | belohalitra | 
| Ruelliola grevei | mandavohita | 
| Rulingia madagascariensis | hafodambo, hafontradala, hafopotsy, hafotradala, hafotriadala, malamamavo, rambiasa | 
| Rumex abyssinicus | fandrabola, hakasimpoaka, kakasimpoaka, kamasina | 
| Rumex bequaertii | bolela, fandrabola, lavaravina, losy, tabebaka | 
| Rumex crispus | famelomana, fandrabola, lavaravina, lelanakanga, lelanangaka, lelangaka, molotrakanga, tabebaka | 
| Rumex nepalensis | lavaravina | 
| Russula cyanoxantha | holadronono | 
| Russula poissonii | holatsakay | 
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