| |
| Mabea | fistulifera ssp. robusta |
| Macairea | adenostemon |
| Machaerina | austrobrasiliensis, ensifolia, ficticia, scirpoidea |
| Machaerium | acutifolium, brasiliense, debile, eriocarpum, glabrum, hatschbachii, hirtum, lanceolatum, nyctitans, paraguariense, ruddianum, scleroxylon, stipitatum, uncinatum, villosum |
| Machaonia | acuminata, brasiliensis |
| Maclura | tinctoria ssp. mora, tinctoria ssp. tinctoria |
| Macrachaenium | gracile var. gracile, gracile var. radiatum |
| Macradenia | paraensis |
| Macrocarpaea | rubra |
| Macropharynx | meyeri, peltata |
| Macropodina | blumenavii, reitzii |
| Macropsychanthus | violaceus, wilsonii |
| Macroptilium | arenarium, atropurpureum, bracteatum, chacoensis, erythroloma, gibbosifolium, gracile, lathyroides, longepedunculatum, martii, monophyllum, panduratum, prostratum, psammodes, sabaraense |
| Macroscepis | dutrae, elliptica, grandiflora, hatschbachii, schreiteri, selloana |
| Macrothelypteris | torresiana |
| Madia | chilensis, sativa |
| Magnolia | ovata |
| Magonia | pubescens |
| Maihuenia | patagonica, poeppigii |
| Maihueniopsis | archiconoidea, atacamensis, boliviana ssp. ignescens, boliviana ssp. echinacea, camachoi, colorea, crassispina, darwinii var. hickenii, darwinii var. darwinii, domeykoensis, glomerata, grandiflora, minuta, nigrispina, ovata, rahmeri, wagenknechtii |
| Maireana | brevifolia |
| Malachra | radiata |
| Malacothrix | clevelandii, coulteri |
| Malanea | evenosa, forsteronioides |
| Malaxis | cogniauxiana, cordilabia, engelsii, excavata, hieronymi, histionantha, irmae, jaraguae, pabstii, padilliana, parthoni, pubescens, spicata, warmingii, ybytus |
| Malcolmia | maritima |
| Malephora | purpurocrocea |
| Malesherbia | auristipulata, bracteata var. bracteata, bracteata var. campanulata, campanulata, corallina, densiflora, deserticola, fasciculata var. fasciculata, fasciculata var. glandulosa, humilis var. parviflora, humilis var. propinqua, humilis var. humilis, lactea var. crassicaulis, lactea var. lactea, linearifolia, lirana var. lirana, lirana var. subglabrifolia, lirana var. atacamensis, paniculata, solanoides var. ovata, solanoides var. oblongifolia, solanoides var. rugosa, solanoides var. solanoides, tenuifolia, tocopillana |
| Malmeanthus | catharinensis, subintegerrimus |
| Malouetia | cestroides |
| Malus | domestica, sylvestris |
| Malva | assurgentiflora, dendromorpha, moschata, neglecta, nicaeensis, parviflora, sylvestris, verticillata |
| Malvastrum | amblyphyllum, americanum, coromandelianum ssp. capitatospicatum, coromandelianum ssp. coromandelianum, coromandelianum var. congestum, cristobalianum, interruptum, ionthocarpum, multicuspidatum, spiciflorum, tomentosum, uniapiculatum |
| Malvella | leprosa |
| Mamedea | pulchella, salicifolia, sericea, uruguariensis |
| Mancoa | foliosa, hispida, venturii |
| Mandevilla | angustifolia, atroviolacea, brachyloba, coccinea, emarginata, funiformis, grata, hirsuta, illustris, immaculata, laxa, longiflora, pentlandiana, petraea, pohliana, scabra, sellowii, spigeliiflora, undulata, urophylla, velame, virescens, widgrenii |
| Manekia | obtusa |
| Manettia | chrysoderma, congestoides, cordifolia, glaziovii, gracilis, jorgensenii, luteo-rubra, paraguariensis, paranensis, pubescens, rojasiana, tweedieana, verticillata |
| Mangifera | indica |
| Mangonia | tweedieana, uruguaya |
| Manihot | anisophylla, anomala ssp. pavoniana, anomala ssp. glabrata, caerulescens ssp. macrantha, esculenta, gracilis, grahamii, guaranitica, hassleriana, hunzikeriana, inflata, mirabilis, neusana, pentaphylla ssp. graminifolia, populifolia, procumbens, takape, tenella, tripartita, variifolia |
| Manilkara | salzmannii, subsericea |
| Mansoa | difficilis |
| Maprounea | brasiliensis, guianensis |
| Maranta | arundinacea, divaricata, sobolifera |
| Marathrum | azarensis |
| Marattia | cicutifolia |
| Marcetia | taxifolia |
| Marcgravia | polyantha |
| Margaritaria | nobilis |
| Margyracaena | skottsbergii |
| Margyricarpus | digynus, lanatus, microcarpus, pinnatus |
| Marlierea | obscura |
| Marrubium | vulgare |
| Marsilea | ancylopoda, deflexa, mollis, polycarpa |
| Marsippospermum | grandiflorum, philippii, reichei |
| Marsypianthes | chamaedrys, hassleri |
| Marticorenia | foliosa |
| Mascagnia | australis, brevifolia, divaricata, sepium |
| Masdevallia | infracta |
| Mastigostyla | brachiandra, cabrerae, coronata, cyrtophylla, implicata, johnstonii, mirabilis, spathacea |
| Matayba | cristae, elaeagnoides, guianensis, intermedia, juglandifolia, marginata, obovata |
| Matelea | denticulata, dusenii, glaziovii, hatschbachii, orthosioides, pyrrhotricha, reitzii |
| Mathewsia | auriculata, foliosa, incana, linearifolia |
| Matricaria | chamomilla, discoidea |
| Matthiola | incana |
| Maurandya | antirrhiniflora, barclayana, erubescens |
| Mauria | thaumatophylla |
| Maxillaria | bradei, brasiliensis, cerifera, chlorantha, cleistogama, consanguinea var. pallida, crassifolia, desvauxiana, discolor, echinophyta, ferdinandiana, gracilis, guareimensis, imbricata, johannis, juergensii, kautskyi, leucaimata var. longifolia, leucaimata var. leucaimata, lindleyana, madida, marginata, minuta, neuwiedii, notylioglossa, ochroleuca, pachyphylla, parahybunensis, paranaensis, parviflora, paulistana, phoenicanthera, plebeja, porphyrostele, porrecta, pumila, rigida, serotina, spegazziniana, subulata, ubatubana var. mantiqueirana, ubatubana var. ubatubana, valenzuelana, vernicosa, vitelliniflora |
| Mayaca | fluviatilis, kunthii, sellowiana |
| Maytenus | boaria, chubutensis, disticha, magellanica, verticillata, viscifolia, vitis-idaea |
| Mazus | japonicus |
| Mecardonia | berroi, grandiflora, kamogawae, procumbens var. caespitosa, procumbens var. procumbens, procumbens var. herniarioides, procumbens var. flagellaris, procumbens var. tenella, pubescens, reneeae, serpylloides |
| Medicago | arabica, arborea, falcata, intertexta, lupulina, minima var. minima, minima var. brevispina, polymorpha var. brevispina, polymorpha var. vulgaris, polymorpha var. polymorpha, polymorpha var. confinis, sativa, scutellata, truncatula |
| Medusantha | eriophylla var. coriifolia |
| Megalachne | berteroniana |
| Megalastrum | abundans, adenopteris, albidum, brevipubens, ciliatum, connexum, crenulans, fugaceum, glabrius, inaequale, inaequalifolium, masafuerae, oreocharis, spectabile, substrigosum, umbrinum, wacketii |
| Megathyrsus | maximus var. maximus, maximus var. pubiglumis |
| Melampodium | divaricatum |
| Melananthus | multiflorus |
| Melanthera | latifolia |
| Melasma | melampyroides, rhinanthoides, stricta |
| Melia | azedarach |
| Melica | animarum, argentata, argyrea, arzivencoi, bonariensis, brasiliana, brevicoronata, cepacea, chilensis, commersonii, decipiens, eremophila, glabrescens, hyalina, lilloi, longiflora, macra, mollis, parodiana, patagonica, paulsenii, poecilantha, rigida, riograndensis, sarmentosa var. pilosula, sarmentosa var. monticola, sarmentosa var. sarmentosa, serrana, spartinoides, stuckertii, tenuis, violacea |
| Melicoccus | lepidopetalus |
| Melidiscus | giganteus |
| Melilotus | albus, indicus, messanensis, officinalis |
| Melinis | minutiflora, repens |
| Meliosma | sellowii |
| Melissa | officinalis |
| Melochia | anomala, arenosa, argentina, canescens, chamaedrys var. chamaedrys, chamaedrys var. decumbens, goldbergii, graminifolia, hassleriana, hermannioides, ministella, morongii, parvifolia var. parvifolia, parvifolia var. fasciculata, pilosa, pyramidata, simplex, thymifolia, villosa var. tomentosa, villosa var. villosa, werdermannii |
| Melosperma | andicola var. angustifolia, andicola var. andicola |
| Melothria | campestris, candolleana, cucumis, hirsuta, pendula, schulziana, uliginosa, warmingii |
| Melothrianthus | smilacifolius |
| Melpomene | albicans, melanosticta, peruviana, xiphopteroides var. acrodonta |
| Mendoncia | puberula, velloziana |
| Meniscium | angustifolium, longifolium, maxonianum, salzmannii, serratum |
| Menodora | decemfida, integrifolia, linoides, pulchella, robusta |
| Menonvillea | chilensis, cicatricosa, comberi, constitutionis, cuneata, famatinensis, filifolia, flexuosa, frigida, linearis, litoralis, macrocarpa, marticorenae, minima, nordenskjoeldii, orbiculata, patagonica, pinnatifida, purpurea, rigida, scapigera ssp. longipes, scapigera ssp. scapigera, spathulata, virens, zuloagaensis |
| Mentha | aquatica, piperita, pulegium, spicata var. spicata, spicata var. rotundifolia, suaveolens |
| Mentzelia | albescens, aspera, parvifolia, scabra ssp. chilensis, scabra ssp. cordobensis, scabra ssp. atacamensis, solierii |
| Mercurialis | annua |
| Merostachys | caucaiana, ciliata, claussenii, fischeriana, glauca, kleinii, kunthii, multiramea, petiolata, pilifera, pluriflora, skvortzovii, speciosa, ternata, vestita |
| Mesadenella | atroviridis, cuspidata |
| Mesanthophora | brunneri, rojasii |
| Mesechites | mansoanus, trifidus |
| Mesembryanthemum | nodiflorum |
| Mesosetum | agropyroides, chaseae, comatum, exaratum, ferrugineum |
| Mesosphaerum | pectinatum, sidifolium, suaveolens |
| Metastelma | fiebrigii, schlechteri, tubatum |
| Metharme | lanata |
| Metrodorea | nigra |
| Metrosideros | stipularis |
| Mickelia | guianensis |
| Miconia | acutiflora, albicans, alterninervia, amygdaloides, auricoma, australis, balansae, biserrata, blepharodes, brasiliensis, brunnea, buddlejoides, budlejoides, bullosa, calvescens, camporum, catharinensis, chaetodonta, chamissois, ciliolata, cinerascens, cinnamomifolia, collatata, cordigera, crenata, cubatanensis, dasytricha, dependens, discolor, dodecandra, dolichostachya, dubia, dusenii, ebracteata, erostrata, fasciculata, fastigiata, flammea, formosa, hatschbachii, herincquiana, horrida, hyemalis, ibaguensis, inaequidens, inconspicua, ioneura, ionopogon, itatiaiae, jucunda, lacunosa, lagunensis, latecrenata, leacalvescens, leaconfusa, leacordifolia, leacrenata, leacuneata, leadebilis, leadispar, leaechinata, leaeichleri, leafallax, leafoveolata, leafragilis, leagracilis, leahirtella, leamarginata, leapallida, learamboi, leasanguinea, ligustroides, longicuspis, luctatoris, lymanii, macropora, melastomoides, meridionalis, microstachya, molybdea, neglecta, neourceolata, niederleinii, oocarpa, opaca, paniculata, paraguayensis, paucidens, pectinata, petropolitana, pilonensis, planifilamentosa, pleioglazioviana, polystachya, prasina, pubistyla, purpureovillosa, pusilliflora, quinquedentata, racemifera, raddii, ramboi, refracta, reitzii, reversa, riograndensis, rubella, sabiaensis, sellowiana, simplicicaulis, splendens, staminea, stenostachya, sublanata, sulfurea, tetraquetra, theizans, trauninensis, tristis, valtheri, willdenowii, xanthocoma, xanthostachya |
| Micranthemum | umbrosum |
| Microbriza | poimorpha |
| Microchilus | arietinus, austrobrasiliensis, pedrojuanensis |
| Microchloa | indica, kunthii |
| Microgramma | geminata, lindbergii, mortoniana, percussa, persicariifolia, squamulosa, tecta, vacciniifolia |
| Microgyne | marchesiana, trifurcata |
| Microlepia | speluncae, strigosa |
| Microliabum | humile, mulgediifolium, polymnioides |
| Microlicia | myrtoidea |
| Microlobius | foetidus ssp. paraguensis |
| Microphyes | litoralis, minima, robusta var. robusta, robusta var. pallida |
| Micropsis | australis, dasycarpa, nana, ostenii, spathulata |
| Microseris | pygmaea |
| Microsorum | scolopendria |
| Microstachys | corniculata, dasycarpa, hispida, nana, serrulata, stipulacea |
| Microsteris | gracilis |
| Microtea | celosioides, debilis, maypurensis, scabrida, sulcicaulis |
| Miersia | chilensis, cornuta, leporina, putaendensis, raucoana, stellata, tenuiseta |
| Miersiella | umbellata |
| Mikania | anethifolia, anisodora, argyreiae, barrosoana, buchtienii, buddleiaefolia, burchellii, calcarulata, campanulata, capricorni, chlorolepis, clematidifolia, cordifolia, cynanchifolia, daspitti, decumbens, diversifolia, dusenii, euryanthela, fulva, glomerata, guaco, guaranitica, haenkeana, hastato-cordata, hemisphaerica, hirsutissima var. ursina, hirsutissima var. hirsutissima, hoehnei, hoffmanniana var. polycephala, hoffmanniana var. hoffmanniana, hoffmanniana var. microphylla, involucrata, jujuyensis, laevigata, lanuginosa, lasiandrae, ligustrifolia, lindbergii var. lindbergii, lindbergii var. collina, lindleyana, lundiana, mendocina, micrantha, microcephala, microlepis, microptera, minima, nana, nigricans, nummularia, oblongifolia, obsoleta, officinalis, oreophila, orleansensis, paniculata, paranensis, parodii, periplocifolia, pilcomayensis, pinnatiloba, pseudohoffmanniana var. microphylla, pseudohoffmanniana var. pseudohoffmanniana, pseudorimachii, psilostachya, rufescens, saltensis, salviifolia, sericea, sessilifolia, setigera, siambonensis, smaragdina, smilacina, sulcata, summinima, ternata, thapsoides, thyrsoidea, trachypleura, triangularis, trinervis, triphylla, ulei, urticifolia, variifolia, viminea, virgata, vitifolia |
| Miltonia | flavescens, phymatochila, regnellii, russelliana |
| Mimosa | adpressa, alleniana, altoparanensis, amphigena var. trachycarpoides, amphigena var. amphigena, amphigena var. inermis, asperoides, atlantica, aureliana, australis, axillarioides, axillaris, balansae, balduinii, baptistae, barnebiana, bathyrrhena, berroi, bifurca var. reducta, bifurca var. desmanthoides, bifurca var. bifurca, bifurca var. hassleriana, bimucronata var. adenocarpa, bimucronata var. bimucronata, bonplandii, bracteolaris, brevipes, brevipetiolata var. brevipetiolata, brevipetiolata var. hirtula, burkartii, caaguazüensis, caesalpiniifolia, caingüensis, callidryas, candelabrum, candollei, castanoclada, catharinensis, centurionis, ceratonia var. pseudo-obovata, cerifera, chacoënsis, chaetosphaera, chartostegia, chelata, chodatii, congestifolia, coniflora, cordobensis, cruenta var. glabra, cruenta var. cruenta, cubatanensis, custodis, daleoides, dalyi, debilis var. debilis, debilis var. angusta, deceptrix, detinens, diffusa, diplotricha, distans var. distans, distans var. paraguariensis, diversipila var. subglabriseta, diversipila var. diversipila, dolens var. pangloea, dolens var. rudis, dolens var. anisitsii, dolens ssp. acerba, dolens var. dolens, dolens var. pubescens, dolens ssp. eriophylla, dolens var. latifolia, dolens var. pseudorigida, dolens var. deterior, dolens ssp. callosa, dolens var. rigescens, dolens ssp. rigida, dolens var. uncta, dolens var. foliolosa, dryandroides var. extratropica, dutrae var. dutrae, dutrae var. major, ephedroides, equisetum, eriocarpa, eurystegia, excedentis, fachinalensis, farinosa, fernandez-casasii, fiebrigii, filipetiola, flagellaris, flocculosa, furfuracea, glabra, glanduliseta, glutinosa, glycyrrhizoides, gracilis var. leiocarpa, gracilis ssp. capillipes, gracilis ssp. gracilis, guaranitica, gymnas, hatschbachii, hexandra, hilariana, hirsutissima, implexa, incana, insignis, intricata, invisa var. invisa, invisa var. macrostachya, involucrata, iperoënsis var. paradenia, iperoënsis var. iperoënsis, kermesina, kuhniesteroides, lanata, lasiocephala, leimonias, lepidorepens, longiracemosa, luciana, lupinoides, macrocalyx var. macrocalyx, macrocalyx var. pectinata, magentea, maracayuënsis, micropteris var. pungens, micropteris var. micropteris, monadelpha var. glabrata, monadelpha var. monadelpha, morongii, murex, myriophylla, niederleinii, nitidula, nuda var. glaberrima, oblonga var. oblonga, oblonga var. pinetorum, obstrigosa, oligophylla, orthacantha, ostenii, paludosa, paraguariae var. tomentosa, paraguariae var. paraguariae, paraguariae var. multiglandulosa, paranapiacabae, parvipinna, paupera var. paupera, paupera var. dives, pauperoides, pedersenii, pedunculosa, per-dusenii, petraea, pigra var. pigra, pigra var. dehiscens, pilulifera var. pilulifera, pilulifera var. pseudincana, plumosa, polycarpa var. spegazzini, polycarpa var. polycarpa, polycarpa var. subandina, prionopus, pseudocallosa, pseudolepidota, pseudopetiolaris, pseudotrachycarpa, pudica var. hispida, pudica var. tetrandra, ramboi, ramentacea, ramosissima, ramulosa, reduviosa, regnellii var. exuta, regnellii var. supersetosa, regnellii var. regnellii, regnellii var. grossiseta, reptans, riverensis, rocae, rojasii, rupestris, scabrella, sceptrum, schininii, schleidenii, selloi, sensibilis var. aquidabani, sensibilis var. sensibilis, sensitiva, serra, sobralii, somnians ssp. somnians, somnians ssp. lasiocarpa, somnians ssp. viscida, sparsa, sparsiformis, sprengelii, strigillosa, strobiliflora, subinermis, subsericea, taimbensis, tandilensis, tarda, tenuipendula, terribilis, tobatiensis, trachycarpa, troncosoae, tucumensis, tweedieana, uliginosa, uninervis, uraguensis, urticaria, velloziana, weddelliana, xanthocentra var. xanthocentra, xanthocentra var. mansii |
| Mimozyganthus | carinatus |
| Minaria | acerosa |
| Mineirella | goyazensis |
| Minthostachys | elongata, verticillata |
| Mionandra | camareoides, paraguariensis |
| Mirabilis | acuta, bracteosa var. micrantha, bracteosa var. bracteosa, cordifolia, elegans, expansa, jalapa, ovata, prostrata, trollii |
| Miscanthus | sinensis |
| Misodendrum | angulatum, brachystachyum, gayanum, linearifolium, macrolepis, oblongifolium, punctulatum, quadriflorum |
| Misopates | orontium |
| Mitracarpus | bacigalupoae, brasiliensis, brevis, frigidus, hasslerianus, hirtus, megapotamicus, schininianus |
| Mitraria | coccinea |
| Mnesithea | aurita, balansae, parodiana, selloana, subgibbosa |
| Mniodes | burkartii, catamarcensis, coarctata, lopezmirandae, pickeringii, piptolepis, santanica, schultzii, subspicata |
| Modiola | caroliniana |
| Modiolastrum | australe, gilliesii, lateritium, malvifolium, palustre |
| Moeroris | amara, fraterna, lindbergii, stipulata, tenella |
| Molineria | capitulata |
| Mollinedia | argyrogyna, blumenaviana, boracensis, calodonta, clavigera, elegans, eugeniifolia, fruticulosa, howeana, luizae, ovata, schottiana, triflora, uleana, widgrenii |
| Mollugo | pentaphylla, verticillata |
| Molucella | laevis |
| Momisia | triflora |
| Momordica | charantia |
| Monnina | cardiocarpa, cuneata, dictyocarpa, itapoanensis, linearifolia, lorenziana, oblongifolia, philippiana, pumila, ramosissima, resedoides, richardiana, rusbyi, stenophylla, tristaniana, virescens, wrightii |
| Monrosia | pterolopha, sanjuanensis |
| Monstera | adansonii ssp. adansonii, adansonii ssp. klotzschiana, praetermissa |
| Montanoa | bipinnatifida |
| Monteiroa | bullata, catharinensis, dusenii, glomerata, hatschbachii, ptarmicaefolia, reitzii, rubra, smithii, triangularifolia |
| Monteverdia | aquifolia, cassineformis, dasyclada, evonymoides, floribunda, glaucescens, gonoclada, ilicifolia, littoralis, patens, robusta, schummaniana, spinosa, urbaniana |
| Montia | fontana |
| Montiopsis | andicola, berteroana, capitata, cistiflora, conferta, copiapina, cumingii, demissa, gayana, gilliesii, glomerata, modesta, parviflora, polycarpoides, potentilloides, ramosissima, sericea, trifida, umbellata |
| Monttea | aphylla, chilensis var. taltalensis, chilensis var. chilensis, schickendantzii |
| Monvillea | cavendishii, euchlora, krapovickiana, phatnosperma var. phatnosperma, phatnosperma var. arenasi, spegazzinii |
| Moorochloa | eruciformis |
| Moquiniastrum | argentinum, argyreum, barrosoae, cinereum, cordatum var. cordatum, cordatum var. mollisimum, haumanianum, mollisimum, paniculatum, polymorphum ssp. ceanothifolium, polymorphum ssp. polymorphum, polymorphum ssp. floccosum, pulchrum, ramboi, sordidum, velutinum |
| Moranopteris | achilleifolia, gradata, setosa |
| Morella | chevalieri, pavonis |
| Moritzia | ciliata, dusenii |
| Morrenia | intermedia |
| Morronea | trichidiachnis |
| Morus | alba, insignis |
| Moscharia | pinnatifida, solbrigii |
| Moschopsis | ameghinoi, angustifolia, caleofuensis, dentata, filifolia, leyboldii, patagonica, rosulata, subandina, trilobata |
| Mostacillastrum | ameghinoi, andinum, carolinense, commune, dianthoides, ferreyrae, gracile, hunzikeri, leptocarpum, orbignyanum, pectinifolium, saltaensis, stenophyllum, subscandens, ventanense, volckmannii |
| Mourera | aspera, weddelliana |
| Mouriri | brevipes, chamissoana |
| Mucuna | pruriens, sloanei, urens |
| Mucura | globulifera |
| Muehlenbeckia | fruticulosa, hastulata var. fascicularis, hastulata var. hastulata, hastulata var. rotundata, sagittifolia, tamnifolia |
| Muellera | campestris, fluvialis, graciliflora, grazielae, nudiflora, sericea, torrensis |
| Muhlenbergia | alopecuroides, angustata, angustata (J. Presl) Kunth x M. rigida, arenicola, asperifolia, atacamensis, bryophilus, ciliata, diversiglumis, fastigiata, ligularis, paniculata, peruviana, phalaroides, ramulosa, rigida, schreberi, tenuifolia, torreyi |
| Mulguraea | arequipensis, asparagoides, aspera var. aspera, aspera var. longidentata, cedroides, cinerascens, echegarayi, hystrix, ligustrina var. ligustrina, ligustrina var. lorentzii, scoparia, tetragonocalyx, tridens |
| Munnozia | hastifolia |
| Munroa | andina, argentina, decumbens, mendocina |
| Muntingia | calabura |
| Murdannia | paraguayensis |
| Musa | ornata, velutina |
| Mutisia | acerosa, acuminata var. hirsuta, acuminata var. paucijuga, araucana, brachyantha, burkartii, campanulata, cana, castellanosii var. castellanosii, castellanosii var. hieronymi, castellanosii var. comechingoniana, coccinea var. dealbata, coccinea var. coccinea, decurrens var. patagonica, decurrens var. decurrens, friesiana, hamata, homoeantha, ilicifolia var. ilicifolia, ilicifolia var. decandolleana, involucrata, kurtzii var. kurtzii, kurtzii var. pinnata, kurtzii var. anomala, lanigera, latifolia f. bracteata, latifolia f. latifolia, ledifolia, linearifolia, linifolia, macrophylla, oligodon, orbignyana, retrorsa, rosea, saltensis, sinuata, speciosa, spectabilis, spinosa var. spinosa, spinosa var. pulchella, splendens, subspinosa, subulata f. rosmarinifolia, subulata f. subulata, tridens |
| Myoporum | laetum |
| Myoschilos | oblongum |
| Myosotis | albiflora, antarctica, arvensis, azorica, discolor ssp. canariensis, discolor ssp. discolor, latifolia, laxa, ramosissima, scorpioides, stricta, sylvatica, verna |
| Myosurus | apetalus, patagonicus |
| Myoxanthus | exasperatus |
| Myracrodruon | balansae, urundeuva |
| Myrceugenia | acutata, acutiflora, alpigena, basicordata, bocaiuvensis, bracteosa, brevipedicellata, campestris, chrysocarpa, colchaguensis, correifolia, cucullata, euosma, exsucca, fernandeziana, foveolata, franciscensis, gertii, glaucescens, hamoniana, hatschbachii, hoehnei, joinvillensis, kleinii, lanceolata, leptospermoides, mesomischa, miersiana, myrcioides, myrtoides, obtusa, ovalifolia, ovata var. nannophylla, ovata var. ovata, oxysepala, parvifolia, pilotantha, pinifolia, planipes, regnelliana, reitzii, rufa, rufescens, schulzei, scutellata, seriatoramosa, venosa |
| Myrcia | aethusa, amazonica, anacardiifolia, anomala, barituensis, bella, bicarinata, brasiliensis, chrysotrichoma, conduplicata, costeira, cruciflora, diaphana, dichrophylla, eugeniopsoides, excoriata, ferruginosa, flagellaris, freyreissiana, garuvana, glabra, glomerata, guianensis, hartwegiana, hatschbachii, hebepetala, heringii, hexasticha, insularis, isaiana, legrandii, lonchophylla, loranthifolia, multiflora, multipunctata, neobrasiliensis, neolucida, neoregeliana, neoriedeliana, neorubella, neosuaveolens, neotomentosa, oblongata, oligantha, palustris, pileata, plusiantha, pubiflora, pubipetala var. magnifolia, pubipetala var. pubipetala, racemosa, reitzii, retorta, ribeirensis, rostrata f. gracilis, rostrata f. rostrata, rostrata f. flexuosa, rupicola, selloi, spectabilis, splendens, squamata, strigipes, strigosa, subacuminata, subcordata, tenuivenosa, tijucensis, tomentosa, tortuosa, trichantha, tricona, undulata, vellozoi, venulosa var. venulosa, venulosa var. dives, verticillaris |
| Myrcianthes | callicoma, cisplatensis, coquimbensis, gigantea, mato, minimifolia, pedersenii, pseudomato, pungens, riparia |
| Myrciaria | cuspidata, delicatula, floribunda, glazoviana, plinioides, tapiraguayensis, tenella |
| Myriocarpa | longipes, stipitata |
| Myriophyllum | aquaticum, quitense |
| Myriopteris | aurea, microphylla, myriophylla, notholaenoides |
| Myriopus | breviflorus, paniculatus var. paniculatus, paniculatus var. austrinus, rubicundus, salzmannii, villosus |
| Myrocarpus | frondosus |
| Myrosmodes | gymnandra, nervosa, noemiae, paludosa |
| Myroxylon | peruiferum |
| Myrrhinium | atropurpureum |
| Myrsine | altomontana, balansae, congesta, coriacea, gardneriana, guianensis, laetevirens, lancifolia, ligustrina, lineata, loefgrenii, lorentziana, matensis, parvifolia, rubra, squarrosa, umbellata, venosa, wettsteinii |
| Myrteola | nummularia |
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