| Geographical names | Botanical scientific names | Biblical names | Nicknames | Institution names |
| Historical names | Zoological scientific names | Fictitious names | Pseudonyms |
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| Scientific Name | Malagasy Name |
| Dombeya hafodahyformis | hafomena |
| Dombeya hafodahy | hafodahy |
| Dombeya hafotsy | hafotsy |
| Dombeya halapo | halapo |
| Sorghum halepense | ampemba, ampembimbazaha, ampemby, bakaka, bakaky, femba, pembamboloky, variampemby, varifemba |
| Cardiospermum halicacabum var. | poakapoaka |
| Cardiospermum halicacabum | kisangy, masontsokina, riado, siramboalavo, tsipoapoaka, vahintsokina |
| Corchorus hamatus | sokondrere |
| Justicia haplostachya | fanitso, fantso, masanjerina, somotsohy, somotsy |
| Diospyros haplostylis | hazomainty, lopingo, mapingo, mapingolahy, pingo |
| Cordyla haraka | haraka |
| Lobelia hartlaubii | ahidresy, anandaingo, velamavo |
| Cyperus haspan var. | vendranala |
| Cyperus haspan | serasera |
| Salvinia hastata | manotona |
| Aloe haworthioides var. | sarivahona |
| Diospyros hazomainty | hazoary, hazomainty |
| Scolopia hazomby | hazomby, longotramena, longotromena |
| Eugenia hazompasika | goaviala, koviala, rotra |
| Mauloutchia heckelii | mafotrasanganakolahy, mafotrasangasanganakoholahy |
| Protorhus heckelii | manavodrevo |
| Dombeya heimii | hafotra, mongihafotra, mongy, valotra |
| Polyscias heineana | zavaviala |
| Strychnos henningsii | tsilanimboana, tsivoamino, tsivoanino |
| Humbertiella henricii f. | seta |
| Humbertiella henricii | seta |
| Polyalthia henrici | ambavy |
| Solanum heteracanthum | angivy, voangivy |
| Popowia heterantha | railombo |
| Cyperus heterocladus | kirindra, vinda, zozoro |
| Dipcadi heterocuspe | tongolondambo |
| Byttneria heteromorpha | hazompositra |
| Byttneria heterophylla | ranonivinombilahy, sely, sofindambo, vahiamalo, vahimainty, vahinamalo, vahinamalona |
| Boscia heterophyllum | teloravy |
| Clerodendrum heterophyllum | fantsikakolahy, tsantsandroy |
| Thilachium heterophyllum | teloravina, vodiaomby |
| Artocarpus heterophyllus | ampalibe |
| Hybanthus heterophyllus | ahikipa |
| Dioscorea heteropoda var. | oviala |
| Dioscorea heteropoda | heofika, hofika, hofimamy, lofika, ofika, ofimamy, ovimamy, ovinala |
| Helichrysum heterotrichum | ahitrandriana |
| Dioscorea hexagona | kitaotao, kitaratara, kitaratasy, kitsaotsao, ovitsangana, voakisitany |
| Faucherea hexandra | nanto, nantoentika, natoberavina, natolahy |
| Leersia hexandra | ahikongona, hosihosy, merakapaha, tsiriry, vilona |
| Oldenlandia heynei | kiamalomanta |
| Oldenlandia heynii | ahibahiny, ahibitsika, arindranto, fozankoa, isipopoka, raiditra, taborimbahiny, tamborombahiny |
| Amorphophallus hildebrandtii | kabijadolo, kabitsandolo, kabitso, kabitsodolo, maroko, marombony, tavolondambo, tavolongoaka |
| Antidesma hildebrandtii | varona, varonala |
| Bauhinia hildebrandtii | banaka, banakamena |
| Blotia hildebrandtii | fanjavala, fanjavoala, maroando, voandavenona, voatonakala |
| Dypsis hildebrandtii | tsirika |
| Kalanchoe hildebrandtii | tambora, tamboro, toaremy |
| Macaranga hildebrandtii | mokaranamavoravina, molanga |
| Mezoneurum hildebrandtii | tsiafakomby |
| Moringa hildebrandtii | felinimirongo, maroseranana |
| Plectaneia hildebrandtii | mampisaraka, vahibarabanja |
| Prockiopsis hildebrandtii | hazonadala, maroampototra |
| Salvinia hildebrandtii | tsiazonafo |
| Senecio hildebrandtii | rambonaomby, rambontsoavaly |
| Stephanostegia hildebrandtii | anakanivato, andriambolafotsy, kironono, tsility |
| Tambourissa hildebrandtii | ambora, amborala, amboralahy, amborasaha |
| Weinmannia hildebrandtii | lalona, lalonaberavina, lalonavavy, rasa |
| Dombeya hilsenbergii | afitra, ambaniakondro, hafopotsimadinidravina, hafopotsy, hafotra, hafotrambaniakondro, mampoza, somangana, tsomangamena |
| Streptocarpus hilsenbergii | sanganakoholoko, tsimbolaotra |
| Helmiopsis hily | andriambolafotsy, hazomadio, hily, mainaty, menahy, pisopisonala |
| Cassia hippophallus | amboraka, haraky, latasoavaly, lazahazo, sambalahy, sangarovatsilahy, sarikomanga, tsambaravatsy |
| Clerodendrum hircinum f. | vanginamboa |
| Clerodendrum hircinum | anginamboay, antamba, sarifotsy |
| Colea hirsuta | tsetsefinantsoy |
| Indigofera hirsuta | engitratainakoho, famafasambo, patry, takotsifotra, tsiasotry |
| Cucumis hirsutus | voahondro |
| Chamaesyce hirta | ahidinono, ahidronono |
| Clidemia hirta | tsitrotroka, voamaintibe |
| Euphorbia hirta var. | ahidinono, kironono |
| Euphorbia hirta | ahidinono, ahidronono, aidinono, fampinonoana, kironono, tambavy, tanampotsihelika, tsimenamena, zanraobera |
| Hydrocotyle hirta | viliabetsahona |
| Hyparrhenia hirta | andrantsiky, danga, kiverovato, kolafa, vero, veromanga, verombato, verotsanjy |
| Conyza hirtella | anampozalahy, dingadingandrano, dingandingandrano |
| Buchnera hispida | tamborintintina, tamborokijoa, tamborotintina |
| Danais hispida | bongo |
| Tragia hispida | agilahy |
| Landolphia hispidula | fingimainty, fingomainty, marokaravina, saomaroka, soamaroka |
| Acanthospermum hispidum | bakakely, fatika |
| Clerodendrum hiulcum | antamba, fotsivony |
| Stephanostegia holophaea var. | zanakanivato |
| Stephanostegia holophaea | lintanambato, zanakanivato |
| Dioscorea hombuka var. | ataza |
| Dioscorea hombuka | homboka, kato |
| Coursiana homolleana | tongobintsy |
| Malleastrum horokoke | hororoke |
| Pachypodium horombense | salotsa, somo, vontaka, vontakakely |
| Brexia horombensis | reampy |
| Mucuna horrida | agivavy, agy, hagy, takilotra, tangilotra, tankiloka, tsingonihoniagy |
| Rhipsalis horrida | vahilotso |
| Croton horridulus | silifotsy |
| Hydrotriche hottoniiflora | hotona, kisangandrano, kisangandranolahy, kotona, volonkotona |
| Croton hovarum | mandravasarotra, sily, tsilimainty |
| Eugenia hovarum | rotra, rotragasy |
| Bakerella hoyifolia | dinty, tongoalahy |
| Andropogon huillensis | kipepaka |
| Cissus humbertiana | kitohy, sandratohy |
| Cryptocarya humbertiana | logodranomena, longodranomena, longotra, tsiramiramy |
| Diospyros humbertiana | hazonta |
| Isolona humbertiana | ambery, ambiry, kililo, ombary, roimbary |
| Chlorophytum humbertianum | fanamato |
| Dialypetalum humbertianum | reniomby, tsitiareniomby |
| Oncostemum humbertianum | satoky |
| Lepturus humbertianus | tsilavonomby |
| Alluaudia humbertii | songombarika, sony |
| Amyrea humbertii | hazondomohina |
| Angraecum humbertii | velonarivotaona |
| Antiaris humbertii | kovosy |
| Brexia humbertii | hanana, marandravina, vahomanana, voakarepoka, voanana |
| Coelocarpum humbertii | rombavola |
| Commiphora humbertii | daro |
| Croton humbertii | fandaiala, lazalaza, mangitranefiky, manitranefitra, mongilahy |
| Diegodendron humbertii | ampoly, lekirina |
| Digitaria humbertii | fandrodahy, fandropalana, volonondry |
| Dypsis humbertii | tsinkaramboalavo, tsiriboalavo |
| Elaeodendron humbertii | fanindravina, tsinefo |
| Erythrophysa humbertii | handimbotsy |
| Exacum humbertii | aferontanihazo |
| Impatiens humbertii | kivolavola |
| Macaranga humbertii | lavatsio, makarana |
| Olax humbertii | remaitso |
| Plagioscyphus humbertii | riapy, tsitakapaly |
| Podocarpus humbertii | kinininala |
| Polystachya humbertii | sonjomboay |
| Protorhus humbertii | tsarataimbarika |
| Tephrosia humbertii | voatelinondrivavy |
| Thilachium humbertii | roravina |
| Trema humbertii | andrarezina, ilaibaratra |
| Vitex humbertii var. | sefontsohy |
| Antiaris humberti | fato |
| Diegodendron humberti | kisaka |
| Eremolaena humblotiana | fotona, hamaninaombilahy |
| Xylopia humblotiana | hazoambo |
| Xylopia humblotiana | ambavilahy, bombana, fotsimavo, fotsivary, fotsivava, hazoambovavy, moragandahy, moranga, morangalahy, morangavavy, morange |
| Alberta humblotii | menavony |
| Eugenia humblotii | rotra |
| Homalium humblotii | marakoditra, mataditra |
| Mauloutchia humblotii | basibasy, hazomalanga, molotrandrago, rarà, raramainty, rarandambo, voararà, voararamolotrandrongo |
| Ocotea humblotii | antafonona, tafona, tafonona, tafononafotsy, tafononamavo, tafonono, varongy |
| Rhodolaena humblotii | fotona, hazomafana, malemisisika, voandrozana |
| Weinmannia humblotii | lalona, lalondrevaka |
| Emilia humifusa | anampoza, antsointsoinkary, ravintsarahazo, siasia, tsiontsiona, tsiotsiona, tsoina |
| Psorospermum humile | tambitsy |
| Amaranthus hybridus subsp. | kimoaembazaha, kimoaevavy, kimoembazaha, kimoevavy, taritaribazaha, tarobazaha |
| Amaranthus hybridus var. | anampatsimena, komoay |
| Amaranthus hybridus | anamena |
| Camptolepis hygrophila | sarirotra |
| Cuscuta hygrophila | bonaka |
| Senecio hypargyraeus | mangatomandry |
| Operculicarya hyphaenoides | sondririna, zabe, zaby |
| Helichrysum hypnoides | itimandrahehatra, sava |
| Arachis hypogaea | endim-boanjo, faikam-boanjo, kapika, kofomboanjo, pitasy, popoka, voahomitohy, voanjo, voanjo katra, voanjokotra, voanjolava, voanjombazaha, voanjomitohy |
| Citrus hystrix | voangabe, voangibe |
| Schizolaena hystrix | bemahova, hazoandatra, voantsiledaka |
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