| |
| Aa | achalensis, fiebrigii, hieronymi, weddelliana |
| Abatia | angeliana, stellata |
| Abildgaardia | ovata |
| Abobra | tenuifolia |
| Abolboda | poarchon |
| Abrodictyum | rigidum |
| Abrotanella | diemii, emarginata, linearifolia, purpurea, submarginata, trichoachaenia, trilobata |
| Abrus | precatorius |
| Abuta | selloana |
| Abutilon | affine, bivalve, grandifolium, herzogianum, malachroides, pauciflorum, ramiflorum, terminale, thyrsodendron, umbelliflorum, viscosum |
| Acacia | dealbata, longifolia, mangium, melanoxylon, paradoxa |
| Acaciella | angustissima |
| Acaena | alpina, antarctica, argentea, caespitosa, confertissima, eupatoria, fuscescens, integerrima, leptacantha, lucida, macrocephala, magellanica, masafuerana, myriophylla, ovalifolia, patagonica, pinnatifida, platyacantha, poeppigiana, pumila, sericea, splendens, stricta, tenera, trifida var. glabrescens, trifida var. trifida |
| Acalypha | amblyodonta, apetiolata, boliviensis, brasiliensis ssp. psilophylla, chaquensis, claussenii, communis ssp. paraguariensis, communis ssp. communis, communis ssp. saltensis, communis ssp. tracheliifolia, communis ssp. apicalis, digynostachya, gracilis, hassleriana, herzogiana, lycioides, multicaulis, plicata, poiretii, schreiteri, senilis, uleana, variabilis, velamea, villosa, wilkesiana |
| Acanthocalycium | ferrarii, glaucum, klimpelianum, spiniflorum, thionanthum |
| Acanthocladus | brasiliensis, dichromus |
| Acanthospermum | australe, consobrinum, hispidum |
| Acanthostachys | strobilacea |
| Acanthostyles | buniifolius |
| Acanthosyris | falcata, spinescens |
| Acaulimalva | nubigena |
| Acca | sellowiana |
| Acer | negundo, pseudoplatanus |
| Achatocarpus | balansae, brevipedicellatus, hasslerianus, microcarpus, praecox var. praecox, praecox f. obovatus, praecox f. spinulosus, praecox var. bicornutus |
| Achillea | millefolium, ptarmica |
| Achyranthes | aspera |
| Achyrocline | alata, anabelae, crassiuscula, flaccida, gardneri, gertiana, hyperchlora, luisiana, marchiorii, ramosissima, rupestris, saturejoides, tomentosa, vargasiana, venosa |
| Aciachne | acicularis |
| Acianthera | acuminatipetala, adirii, alborosea, antennata, aphthosa, atropurpurea, aurantio-lateritia, auriculata, bicarinata, bidentula, boliviana, brachiloba, bragae, caldensis, calopedilon, capanemae, capillaris, crepiniana, crinita, cryptantha, dutrae, echinosa, exarticulata, fenestrata, glanduligera, glumacea, gouveiae, gracilisepala, guimaraensii, hatschbachii, hoffmannseggiana, hygrophila, hystrix, jordanensis, karlii, klingelfusii, klotzschiana, leptotifolia, luteola, macropoda, macuconensis, malacantha, mantiquyrana, marumbyana, modestissima, murexoidea, muscosa, myrticola, nemorosa, oligantha, panduripetala, papillosa, pardipes, parva, pectinata, perdusenii, pubescens, ramosa, recurva, saundersiana, saurocephala, serpentula, sonderiana, spilantha, strupifolia, translucida, tricarinata, tristis, violaceomaculata, wageneriana |
| Acicarpha | bonariensis, bupleuroides, juergensii, obtusisepala, procumbens, tribuloides |
| Acilepidopsis | echitifolia |
| Aciotis | paludosa |
| Acisanthera | alata, alsinifolia, paraguayensis, uniflora, variabilis |
| Acmella | alpestris, bellidioides, brachyglossa, ciliata, decumbens var. decumbens, decumbens var. affinis, glaberrima, grisea, leptophylla, oleracea, psilocarpa, pusilla, serratifolia |
| Acosmium | cardenasii |
| Acrisione | cymosa, denticulata var. denticulata, denticulata var. pilota |
| Acroceras | excavatum, zizanioides |
| Acrocomia | aculeata, emensis, hassleri |
| Acronia | alopex |
| Acrostichum | aureum, danaeifolium |
| Actinocephalus | polyanthus |
| Actinostachys | pennula, subtrijuga |
| Actinostemon | concepcionis, concolor, echinatus, klotzschii, roseliae |
| Adelia | membranifolia |
| Adenaria | floribunda |
| Adenocalymma | acutissimum, bracteatum, dusenii, hatschbachii, marginatum, paulistarum, peregrinum, scansile |
| Adenocarpus | complicatus |
| Adenocaulon | chilense |
| Adenopeltis | serrata |
| Adenostemma | brasilianum, involucratum, verbesina |
| Adesmia | aconcaguensis, acuta, adrianii, aegiceras, ameghinoi, aphanantha, aphylla, arachnipes, araucana, araujoi, arenicola, argentea, argyrophylla, arillata, aromatica, aspera, atacamensis, aueri, aurantiaca, australis, balsamica, bedwellii, bicolor, bijuga, boelckeana, bonariensis, boronioides, brachysemeon, bracteata, brevivexillata, burkartii, calycicomosa, candida var. candida, candida var. cabrerae, capitellata, ciliata, colinensis, coluteoides, conferta, confusa, coquimbensis, cordobensis var. appendiculata, cordobensis var. cordobensis, coronilloides, corymbosa var. sinepenna, corymbosa var. corymbosa, crassicaulis, cuneata, curvifolia, cytisoides, darapskyana, davilae, denticulata, denudata, dessaueri, dichotoma, digitata, disperma, dumosa, echinus, elata, elegans, emarginata, ephedroides, eremophila, erinacea, exilis, filicaulis, filifolia, filipes, friesii, frigida, fuentesii, gilliesii, glandulifolia, glaucescens, globosa, glomerula var. australior, glomerula var. glomerula, glutinosa, godoyae, gracilis, gracillima, graminidea, grandiflora, grisea, guttulifera, hemisphaerica, hirsuta, horrida, hunzikeri, hystrix, incana, inflexa, jilesiana, karraikensis, lanata, landbeckii, latifolia, laxa, leiocarpa, leptobotrys, lihuelensis, littoralis, longipes, longiseta, lotoides, loudonia, macrostachya, medinae, melanocaulos, melanthes, mendozana, micrantha, microcalyx var. calvescens, microcalyx var. microcalyx, microphylla, minor var. riojana, minor var. minor, minor var. caespitosa, miottoae, miraflorensis, monosperma, montana, mucronata, multicuspis, muricata, nanolignea, neglecta, neuquenensis, obcordata, obovata, obscura, occulta, odontophylla, ovallensis, pampeana, papposa var. papposa, papposa var. radicifolia, paranensis, parviflora, parvifolia, patagonica, pauciflora, pedicellata, pentaphylla, peraltae, phylloidea, pimpinellifolia, pinifolia, pirionii, polyphylla, propinqua, prostrata var. prostrata, prostrata var. eglandulosa, pseudincana, pseudogrisea, psoraleoides, pumahuasiana, pumila, punctata, pungens, pusilla, quadripinnata, ragonesei, rahmeri, ramosissima, reclinata, reitziana, renjifoana, resinosa, retrofracta, retusa, riograndensis, rocinhensis, rubroviridis, ruiz-lealii, salamancensis, salicornioides, sandwithii, sanjuanensis, schickendantzii, schneideri, securigerifolia, serrana, sessilifolia, silvestrii, smithiae, spinosissima, spuma, stenocaulon, subterranea, subtropicalis, suffocata, sulina, tehuelcha, tenella var. macrocarpa, tenella var. tenella, tenella var. misera, tomentosa, torcaea, trifoliata, trifoliolata var. trifoliolata, trifoliolata var. epunctata, trijuga, tristis, tunuianica, uruguaya, uspallatensis, vallsii, verrucosa, villosa, viscida, viscidissima, viscosa, volckmannii, zoellneri |
| Adetogramma | chrysolepis |
| Adiantopsis | × australopedata, cheilanthoides, chlorophylla, dichotoma, occulta, orbignyana, perfasciculata, radiata, recurvata, regularis, tweediana |
| Adiantum | abscissum, camptorachis, capillus-veneris, chilense var. chilense, curvatum, deflectens, delicatulum, digitatum, diogoanum, excisum, gertrudis, glanduliferum, humile, incertum, intermedium, latifolium, lorentzii, macrophyllum, mathewsianum, obliquum, orbignyanum, pearcei, pectinatum, pentadactylon, peruvianum, petiolatum, philippianum, platyphyllum, poiretii f. bottinoi, poiretii f. poiretii, pseudotinctum, pulverulentum, raddianum, rodriguezii, scabrum, serrato-dentatum, sulphureum var. majus, sulphureum var. sulphureum, terminatum, tetraphyllum, viscosum, weatherbyanum, windischii |
| Aechmea | apocalyptica, blumenavii var. blumenavii, blumenavii var. alba, bromeliifolia, calyculata var. calyculata, calyculata var. variegata, candida, caudata, coelestis, comata, cylindrata, dealbata, distichantha, gamosepala var. nivea, gamosepala var. gamosepala, gracilis, joannis, kertesziae, kleinii, nudicaulis, organensis, ornata, pectinata, pimenti-velosoi, recurvata var. recurvata, recurvata var. ortgiesii, recurvata var. albobracteata, recurvata var. benrathii, rubroaristata, triangularis, winkleri |
| Aegiphila | australis, brachiata, fluminensis, graveolens, integrifolia, luschnathii, mediterranea, obducta, saltensis, serrata, verticillata, vitelliniflora |
| Aeschynomene | americana, denticulata, evenia var. serrulata, evenia var. evenia, fluminensis, fructipendula, indica, magna, montevidensis, paraguayensis, parviflora, pratensis var. caribaea, rudis, selloi, sensitiva |
| Aextoxicon | punctatum |
| Agalinis | communis, digitalis, fiebrigii, genistifolia, linarioides ssp. rojasii, linarioides ssp. linarioides, meyeniana, ramulifera |
| Agapanthus | africanus |
| Agarista | boliviensis, chlorantha, eucalyptoides, minensis, niederleinii var. acutifolia, niederleinii var. niederleinii, nummularia, oleifolia, paraguayensis, pulchella var. cordifolia, pulchella |
| Agave | americana |
| Agenium | leptocladum, majus, villosum |
| Ageratina | azangaroensis, glechonophylla, lorentzii, tenuis |
| Ageratum | conyzoides, fastigiatum |
| Agonandra | brasiliensis, excelsa |
| Agoseris | chilensis, coronopifolia |
| Agrimonia | hirsuta, parviflora, villosa |
| Agropyron | cristatum |
| Agrostemma | githago |
| Agrostis | ambatoensis, arvensis, austroamericana, brachyathera, breviculmis, capillaris, castellana, elongatiligulata, gigantea, glabra var. glabra, glabra var. melanthes, hygrometrica, idahoensis, imberbis, inconspicua, insularis, koelerioides, lenis, leptotricha, longiberbis, masafuerana, mertensii, meyenii, montevidensis f. montevidensis, montevidensis f. submutica, nebulosa, nowodworskyi, perennans, philippiana, platensis, reuteri, scabra, serranoi, stolonifera var. palustris, stolonifera var. stolonifera, tandilensis, tolucensis, trisetoides, uliginosa, umbellata, vidalii, vinealis |
| Ailanthus | altissimus |
| Aimara | rollinsii |
| Aiouea | acarodomatifera, amoena, glaziovii, hatschbachii, haussknechtii, montana, pseudoglaziovii, saligna, sellowiana, trinervis |
| Aira | caryophyllea, cupaniana, elegantissima, praecox |
| Airampoa | ayrampo |
| Alansmia | reclinata |
| Albizia | julibrissin, lophantha |
| Alcea | rosea |
| Alchemilla | arvensis, bipinnatifida, grisebachiana, parodii, pinnata |
| Alchornea | castaneifolia, glandulosa ssp. iricurana, sidifolia, triplinervia |
| Aldama | adenotricha, amphichlora, anchusifolia var. anchusifolia, anchusifolia var. imarginata, aspilioides, atacamensis, bakeriana, breviflosculosa, densifolia, fabrisii, filifolia, gilliesii, helianthoides, knobiana, linearifolia, macrorhiza, megapotamica, meridionalis, misionensis, mollis, nudicaulis, paranensis, pilicaulis, pilosa, revoluta, robusta, santacatarinensis, squalida, trichophylla, tuberosa var. guaranitica, tuberosa var. tuberosa, tucumanensis |
| Aleurites | moluccanus |
| Alibertia | edulis, latifolia |
| Alicia | anisopetala |
| Alisma | lanceolatum, plantago-aquatica |
| Allagoptera | arenaria, campestris, leucocalyx |
| Allamanda | schottii |
| Allenrolfea | patagonica, vaginata |
| Alliaria | petiolata |
| Allionia | choisyi, incarnata |
| Allium | ampeloprasum, cepa, schoenoprasum, triquetrum, vineale var. vineale, vineale var. compactum |
| Allophylus | edulis, guaraniticus, pauciflorus, petiolulatus, puberulus, semidentatus, strictus |
| Alnus | acuminata, glutinosa, incana, rubra |
| Alocasia | macrorrhizos |
| Aloe | arborescens, maculata |
| Alonsoa | honoraria, meridionalis |
| Alopecurus | aequalis, bonariensis, geniculatus var. geniculatus, geniculatus var. patagonicus, heleochloides, hitchcockii, lechleri, magellanicus var. bracteatus, magellanicus var. magellanicus, myosuroides, pratensis |
| Aloysia | brasiliensis, castellanosii, catamarcensis, chamaedryfolia, citrodora, cordata, crenata, decipiens, deserticola, dusenii, fiebrigii, gratissima var. gratissima, gratissima var. sellowii, hatschbachii, oblanceolata, ovatifolia, polygalifolia, polystachya, riojana, salsoloides, salviifolia, schulziana, scorodonioides var. scorodonioides, scorodonioides var. mathewsii, tarapacana, trifida, virgata var. virgata, virgata var. platyphylla |
| Alseis | floribunda |
| Alshehbazia | friesii, hauthalii, werdermannii |
| Alsophila | capensis ssp. polypodioides, capensis ssp. capensis, cuspidata, elata, odonelliana, setosa, sternbergii |
| Alstroemeria | achirae, albescens, amabilis, andina var. andina, andina var. venustula, angustifolia var. angustifolia, angustifolia var. velutina, apertiflora, aurea, bakeri, citrina, crispata, cummingiana, cunha, diluta ssp. chrysantha, diluta ssp. diluta, esteparica, exserens, garavantae ssp. longaviensis, garaventae ssp. garavantae, graminea, hookeri, inodora, isabellana, kingii, leporina, ligtu ssp. ligtu, ligtu ssp. splendens, ligtu ssp. simsii, lutea, magnifica var. tofoensis, magnifica var. magenta, magnifica var. sierrae, magnifica ssp. - var. magnifica, malmeana, marticorenae, maxima, mollensis, monantha, pallida, parvula, patagonica, pelegrina, philippii var. albicans, philippii var. philippii, piperata, polyphylla, presliana ssp. australis, presliana ssp. presliana, pseudospathulata, psittacina, pulchra ssp. pulchra, pulchra ssp. lavandulacea, pygmaea, revoluta, ribeirensis, schizanthoides var. schizanthoides, schizanthoides var. alba, sellowiana, spathulata, traudliae, umbellata, urubiciensis, versicolor, violacea, werdermannii var. flavicans, werdermannii var. werdermannii, zoellneri |
| Alternanthera | albida, altacruzensis, aquatica, brasiliana var. villosa, brasiliana var. brasiliana, cana, caracasana, cinerella, collina, ficoidea, flavescens, halimifolia, hirtula var. hirsuta, hirtula var. hirtula, hirtula var. nitens, inaccessa, kurtzii ssp. sclerosperma, kurtzii ssp. kurtzii, lanceolata, littoralis var. maritima, micrantha, microphylla ssp. microphylla, microphylla ssp. maior, nodifera, paronychioides ssp. chacoensis, paronychioides ssp. pilosa, paronychioides ssp. paronychioides, pennelliana, philoxeroides f. philoxeroides, porrigens, puberula, pumila, pungens, reineckii, rufa, serpens, sessilis, suessenguthii |
| Alvaradoa | subovata |
| Alysicarpus | ovalifolius, vaginalis |
| Alyssum | alyssoides |
| Amaioua | guianensis, intermedia |
| Amaranthus | albus, asplundii ssp. asplundii, asplundii ssp. australis, blitoides, blitum ssp. emarginatus, blitum ssp. pseudogracilis, cardenasianus, caudatus, crispus, deflexus, dubius, hunzikeri, hybridus ssp. quitensis, hybridus ssp. cruentus, hybridus ssp. hybridus, kloosianus, lividus, lombardoi, looseri, muricatus, palmeri, pedersenianus, persimilis, peruvianus, retroflexus, rosengurttii, spinosus, standleyanus, viridis, vulgatissimus |
| Amaryllis | belladonna |
| Amasonia | hirta |
| Amauropelta | achalensis, altitudinis, amambayensis, araucariensis, argentina, burkartii, cheilanthoides, concinna, decurtata, juergensii, jujuyensis, metteniana, mosenii, nubicola, oligocarpa, opposita, pachyrhachis, patula, platensis, pleiophylla, podotricha, ptarmica, raddii, recumbens, regnelliana, retusa, rivularioides, sanctae-catharinae, saxicola, stierii, tenerrima, yabotiensis |
| Amblyopappus | pusillus var. pusillus, pusillus var. pauciflorus |
| Ambrosia | arborescens, artemisiifolia, artemisioides, chamissonis, cumanensis, polystachya, scabra, tarapacana, tenuifolia |
| Amburana | cearensis |
| Ameghinoa | patagonica |
| Amelanchier | alnifolia |
| Amelichloa | ambigua, brachychaeta, brevipes, caudata |
| Amicia | andicola, fimbriata, medicaginea |
| Ammannia | auriculata, coccinea, latifolia, robusta |
| Ammi | majus |
| Ammophila | arenaria |
| Ammoselinum | rosengurttii |
| Amomyrtella | guili |
| Amomyrtus | luma, meli |
| Amorimia | exotropica |
| Amorpha | fruticosa |
| Amphibromus | quadridentulus |
| Amphilophium | bracteatum, carolinae, crucigerum, dolichoides, dusenianum, elongatum, falcatum, paniculatum, pannosum, sandwithii |
| Amphipetalum | paraguayense |
| Amphiscirpus | nevadensis |
| Amsinckia | calycina, tessellata |
| Anacampseros | kurtzii, vulcanensis |
| Anacardium | humile |
| Anachoretes | castilloni |
| Anadenanthera | colubrina var. colubrina, colubrina var. glabra, macrocarpa, peregrina |
| Anagallis | pumila |
| Ananas | ananassoides, bracteatus, fritzmuelleri |
| Anaphalis | chilensis |
| Anarthrophyllum | andicolum, burkartii, capitatum, catamarcense, cumingii, desideratum var. mustersii, desideratum var. morenonis, desideratum var. desideratum, elegans, gayanum, macrophyllum, ornithopodum, patagonicum, pedicellatum, rigidum, strigulipetalum, subandinum |
| Anathallis | adenochila, bertoniensis, bleyensis, bocainensis, brevipes, caroli, ciliolata, corticicola, dryadum, fernandiana, gerthatschbachii, globifera, heloisae f. camboriensis, heterophylla, imbricata, johnsonii, kleinii, klingelfusii, laciniata, linearifolia, malmeana, marginata, microblephara, microphyta, microtis, muscoidea, obovata, pabstii, petersiana, piratiningana, rubens, rubrolimbata, rudolfii, sclerophylla, seidelii, sororcula, vitorinoi, ypirangae |
| Anatherostipa | brevis, hans-meyeri |
| Anatherum | arenarium, barretoi, bicorne, glaucophyllum, glaziovii, laterale, leucostachyum, lindmannii, macrothrix, selloanum |
| Anchietea | exalata, pyrifolia |
| Anchusa | officinalis |
| Ancistrotropis | clitorioides, firmula, peduncularis, serrana |
| Andeimalva | chilensis |
| Andinocleome | chilensis |
| Andira | anthelmia, fraxinifolia, humilis, inermis |
| Andropogon | coloratus, exaratus, gayanus, hypogynus, ternatus, virgatus |
| Androsace | salasii |
| Anemia | australis, ferruginea var. ferruginea, ferruginea var. ahenobarba, herzogii, imbricata, lanata, mandioccana, myriophylla, phyllitidis var. phyllitidis, phyllitidis var. tweedieana, phyllitidis var. pluripinnae, raddiana, simplicior, tomentosa var. tomentosa, tomentosa var. anthriscifolia, trichorhiza var. paraguariensis, villosa, warmingii, wettsteinii |
| Anemonastrum | antucense |
| Anemone | decapetala var. decapetala, hepaticifolia, moorei, multifida, rigida, sellowii, triternata |
| Anemopaegma | arvense, chamberlaynii, flavum, glaucum, longipetiolatum, nebulosum, prostratum |
| Anethum | graveolens |
| Angelonia | integerrima, perennis, salicariifolia |
| Aniba | firmula |
| Aniseia | argentina, luxurians, martinicensis |
| Anisocapparis | speciosa |
| Anisomeria | coriacea, littoralis |
| Anisosperma | passiflora |
| Annona | cacans, calophylla, campestris, coriacea, cornifolia, crassiflora, crotonifolia, dioica, dolabripetala, emarginata, glabra, glaucophylla, maritima, montana, mucosa, neosalicifolia, nutans, paraguayensis, rugulosa, sylvatica |
| Anoda | cristata |
| Anogramma | leptophylla, lorentzii |
| Anomospermum | reticulatum ssp. nitidum, reticulatum ssp. reticulatum |
| Anredera | cordifolia, diffusa, krapovickasii, tucumanensis |
| Antennaria | chilensis var. magellanica, chilensis var. chilensis, sleumeri |
| Anthaenantia | lanata |
| Anthaenantiopsis | fiebrigii, perforata, rojasiana, trachystachya |
| Anthemis | arvensis, cotula |
| Anthericum | argentinense, hickenianum, volcanense |
| Anthodon | decussatus |
| Anthoxanthum | juncifolium, moorei, odoratum, pusillum, redolens var. redolens, redolens var. gunckelii, spicatum, utriculatum var. altissimum, utriculatum var. utriculatum |
| Anthriscus | caucalis, sylvestris |
| Anthurium | acutum, comtum, coriaceum, gaudichaudianum, hatschbachii , loefgrenii, marense, maximiliani, paraguayense, pentaphyllum, pilonense, plowmanii, scandens, sellowianum, sinuatum, urvilleanum |
| Antidaphne | punctulata |
| Antigonon | leptopus |
| Antiphytum | berroi, charruasorum, cruciatum |
| Antirrhinum | majus |
| Apalanthe | granatensis |
| Apera | interrupta |
| Aphanes | berteroana f. vegeta, berteroana f. berteroana, looseri, neglecta |
| Aphelandra | chamissoniana, hieronymi, liboniana, lilacina, longiflora, ornata, schottiana |
| Aphyllocladus | denticulatus var. calvus, denticulatus var. denticulatus, ephedroides, sanmartinianus, spartioides |
| Aphyllon | chilense |
| Apinagia | guairaensis, richardiana, riedelii |
| Apium | australe, chilense, commersonii, fernandezianum, graveolens, panul, pimpinellifolium, prostratum, sellowianum |
| Apoclada | simplex |
| Apodanthera | anatuyana, hirtella, laciniosa, linearis var. linearis, linearis var. dissecta, sagittifolia, ulei |
| Apodasmia | chilensis |
| Aponogeton | distachyos |
| Apopyros | corymbosus |
| Aptenia | cordifolia |
| Apteria | aphylla |
| Apuleia | leiocarpa |
| Apurimacia | dolichocarpa |
| Aquilegia | vulgaris |
| Arabidopsis | thaliana |
| Arachis | batizocoi, burkartii, cardenasii, correntina, diogoi, duranensis, glabrata var. glabrata, glabrata var. hagenbeckii, guaranitica, hassleri, hoehnei, lignosa, major, microsperma, monticola, nitida, paraguariensis, pflugeae, pintoi, pseudovillosa, repens, schininii, sesquijuga, stenophylla, stenosperma, villosa |
| Arachniodes | denticulata |
| Arachnitis | uniflora |
| Araeoandra | tenuicaulis |
| Aralia | soratensis, warmingiana |
| Araucaria | angustifolia, araucana |
| Araujia | angustifolia, brachystephana, hassleriana, herzogii, megapotamica, odorata, plumosa, scalae, sericifera, stormiana, stuckertiana ssp. grandiflora, stuckertiana ssp. stuckertiana, variegata |
| Archidasyphyllum | diacanthoides, excelsum |
| Arctium | minus |
| Arctotheca | calendula |
| Arctotis | stoechadifolia |
| Ardisia | guianensis |
| Arenaria | achalensis, catamarcensis, digyna, lanuginosa var. megalantha, lanuginosa var. diffusa, lanuginosa var. ensifolia, lanuginosa var. lanuginosa, pycnophylloides, rivularis, serpens, serpyllifolia |
| Argemone | crassifolia, hunnemannii, mexicana, rosea, subfusiformis |
| Argentina | anserina |
| Argylia | adscendens var. adscendens, adscendens var. viridis, bifrons, bustillosii, checoensis, conaiensis, farnesiana, geranioides, glutinosa, potentillifolia, radiata, robusta, tomentosa, uspallatensis |
| Argyranthemum | frutescens |
| Argyrochosma | chilensis, flavens, nivea, tenera |
| Argythamnia | acaulis, breviramea, jablonszkyana, malpighipila, montevidensis, salina, sellowiana |
| Aristeguietia | salvia |
| Aristida | achalensis, adscensionis, antoniana, asplundii var. pauciflora, asplundii var. asplundii, brasiliensis, circinalis, condylifolia, constricta, echinulata, ekmaniana, filifolia, flaccida, friesii, glaziovii, hackelii, hassleri, jubata, laevis, laxa var. longiramea, macrantha, macrophylla, megapotamica var. longipes, megapotamica var. brevipes, megapotamica var. megapotamica, mendocina, minutiflora var. glabriflora, minutiflora var. minutiflora, multiramea, murina, nicorae, oligospira, pallens, parodii, pedroensis, pubescens, recurvata, riograndensis, riparia, sayapensis, spegazzinii, subulata, teretifolia, trachyantha, uruguayensis var. laevis, uruguayensis var. uruguayensis, valida, venustula var. venustula, venustula var. scabrifolia, venustula var. venustuloides, vexativa, victoriana |
| Aristolochia | angustifolia, arcuata, argentina, barbata ssp. benedicti, bridgesii, burelae, castellanosii, ceresensis, chamissonis, chilensis, curviflora, elegans, esperanzae, fimbriata, gibertii, gigantea, holostylis, labiata, lindneri, lingua, melanoglossa, melastoma, odoratissima, paulistana, pearcei, prostrata, pyrifolia, ridicula, robertii, rojasiana, sessilifolia, stomachoidis, stuckertii, triangularis, trilobata, warmingii, wendeliana |
| Aristotelia | chilensis |
| Arjona | chubutensis, longifolia, megapotamica, pusilla, ruscifolia, tuberosa var. tuberosa, tuberosa var. tandilensis |
| Armeria | maritima |
| Arnica | angustifolia |
| Arquita | mimosifolia, trichocarpa |
| Arrhenatherum | elatius var. elatius, elatius var. bulbosum |
| Artemisia | abrotanum, absinthium, annua, copa var. copa, copa var. trifida, douglasiana, echegarayi, magellanica, mendozana var. paramilloënsis, mendozana var. mendozana, verlotiorum |
| Arthropogon | villosus, xerachne |
| Arthropteris | altescandens |
| Artocarpus | heterophyllus |
| Arum | italicum |
| Arundinella | berteroniana, hispida |
| Arundo | donax |
| Aschersoniodoxa | cachensis |
| Asclepias | barjoniifolia, bracteolata, candida, curassavica, langsdorffii, mellodora, pilgeriana |
| Asemeia | acuminata, extraaxillaris, hebeclada, hirsuta, rhodoptera, tobatiensis, violacea |
| Asparagus | aethiopicus, asparagoides, densiflorus, officinalis var. altilis, scoparius, setaceus |
| Aspasia | lunata |
| Asperugo | procumbens |
| Asphodelus | fistulosus |
| Aspicarpa | schininii |
| Aspidogyne | argentea, bidentifera, bruxelii, commelinoides, debilis, decora, fimbrillaris, foliosa |
| Aspidosperma | australe, camporum, cuspa, cylindrocarpon, macrocarpon, nobile, parvifolium, polyneuron, pyricollum, pyrifolium, quebracho-blanco, ramiflorum, riedelii, subincanum, tomentosum, triternatum |
| Aspilia | attenuata, aurantiaca var. aurantiaca, aurantiaca var. vulcanica, camporum, clausseniana, floribunda, foliacea, hassleriana, latissima, leucanthema, linearis, montevidensis, pascalioides, phyllostachya, reflexa, riedelii, silphioides |
| Asplenium | abscissum, achalense, aethiopicum, alatum, argentinum, atlanticum, auriculatum, auritum, balansae, bradei, brasiliense, campos-portoi, castaneum, cirrhatum, claussenii, cristatum, cuspidatum, dareoides, depauperatum, drepanophyllum, feei, flabellulatum, formosum, gastonis, gilliesii, harpeodes, inaequilaterale, incurvatum, kunzeanum, lacinulatum, lilloanum, lorentzii, macrosorum, martianum, monanthes, mucronatum, muellerianum, obtusatum var. obtusatum, obtusatum var. sphenoides, oligophyllum, otites, palmeri, papaverifolium, patagonicum, peruvianum, polyodon var. squamulosum, pseudonitidum, pteropus, pulchellum, pumilum, raddianum, radicans, resiliens, scandicinum, sellowianum, serra, serratum, squamosum, stellatum, stuebelianum, sylvestre, trilobum, triphyllum, ulbrichtii, uniseriale, wacketii |
| Asplundia | brachypus |
| Astelia | pumila |
| Asteranthera | ovata |
| Asteriscium | aemocarpon, argentinum, chilense, closii, famatinense, fimbriatum, glaucum, novarae, vidalii |
| Asteropsis | megapotamica |
| Asterostigma | lividum, reticulatum, tweedianum |
| Astraea | cincta, gracilis, jatropha, lobata, paulina |
| Astragalus | amatus, ameghinoi, anni-novi, arequipensis, argentinus, arnottianus, asplundii, austroargentinus, bellus, bergii, berteroanus, berteroi, boelckei, bonariensis, burkartii, bustillosii, cachinalensis, carinatus, chamissonis, chubutensis, colhuensis, complicatus, confinis, coquimbensis, cruckshanksii, crymophilus, crypticus, cryptobotrys, curvicaulis, cuyanus, darumbium, darwinianus, diminutivus var. diminutivus, diminutivus var. dielsii, distinens, dodtii, domeykoanus, edmonstonei, fabrisii, famatinae, flavocreatus, garbancillo, germainii, hickenii, hypsogenus, illinii, joergensenii, johnstonii, limariensis, looseri, magellanicus, maulensis, mendocinus, micranthellus, minimus, minutissimus, monteroi, monticola, moyanoi, nelidae, neoburkartianus, neocarpus, neoorthocarpus, neuquenensis, nicorae, nivicola, nudus, palenae var. grandiflorus, palenae var. palenae, paposanus, parodii, patagonicus, pauranthus, pehuenches, peruvianus, pissisii, pulviniformis, punae, pusillus, reichei, ruiz-lealii, sanctae-crucis, schinetorum, spegazzinii, tacorensis, tarijensis, tehuelches, triflorus, trifoliatus, uniflorus, urbanianus , vagus, valerianensis, venturii, verticillatus, vesiculosus, weddellianus, werdermannii |
| Astrocaryum | aculeatissimum |
| Astrolepis | sinuata |
| Astronium | fraxinifolium var. fraxinifolium, fraxinifolium var. glabrum, graveolens |
| Asynthema | gracile |
| Atacama | nivea |
| Atacamallium | minutiflorum |
| Atamisquea | emarginata |
| Ateleia | glazioveana |
| Athenaea | brasiliana, fasciculata, picta, tomentosa, wettsteiniana |
| Athroostachys | capitata |
| Athyana | weinmanniifolia |
| Athyrium | dombeyi |
| Atriplex | ameghinoi, argentina, atacamensis, boecheri, braunii, chapinii, chilensis, chizae, clivicola, coquimbana, cordobensis ssp. cordobensis, cordobensis ssp. grandibracteata, costellata, crenatifolia, eximia, frigida, glaucescens, hortensis, hystrix, imbricata var. foliolosa, imbricata var. imbricata, lampa, leuca, lithophila, madariagae, mendozaensis, micrantha, montevidensis, myriophylla, nitrophiloides, nummularia, oreophila, pamparum, patagonica, patula, peruviana, philippii, prostrata, quixadensis, repanda, retusa, rosea, sagittifolia, semibaccata, sorianoi, spegazzinii, suberecta, taltalensis, tatarica, undulata, vallenarensis, vulgatissima |
| Attalea | dubia, exigua, phalerata |
| Augustea | anomala, coquimbensis, moreirana, suffruticosa |
| Aulonemia | amplissima, aristulata, cincta, lanciflora |
| Austroblechnum | × rodriguezii, asperum, corralense, divergens, fernandezianum, lechleri, lehmannii, leyboldtianum, microphyllum, organense, penna-marina, squamipes, vallegrandense |
| Austrobrickellia | arnottii, patens var. rhodolaena, patens var. tomentosa, patens var. patens |
| Austrocactus | aonikenkensis, bertinii, coxii ssp. colloncurensis, coxii, decorus, diamantinus, elegans, ferrarii, hibernus ssp. hibernus, hibernus ssp. robustior, implexus, longicarpus, nobilis, occidentalis, patagonicus, pauxillus, philippii, praecox, spiniflorus, subandinus |
| Austrocedrus | chilensis |
| Austrochthamalia | major, teyucuarensis |
| Austrocritonia | velutina |
| Austrocylindropuntia | miquelii, shaferi var. shaferi, shaferi var. humahuacana, verschaffeltii, vestita |
| Austroeupatorium | apense, inulifolium, laetevirens, neglectum, picturatum, rosmarinaceum, silphiifolium, steviifolium |
| Austroflourensia | fiebrigii, hirtissima, niederleinii, suffrutescens, thurifera, tortuosa |
| Austroliabum | candidum, eremophilum, glanduliferum |
| Austrolycopodium | alboffii, confertum, erectum, magellanicum, paniculatum |
| Austropeucedanum | oreopansil |
| Austrostipa | plumigera, scabra |
| Avellanita | bustillosii |
| Avena | barbata, byzantina var. byzantina, byzantina var. biaristata, byzantina var. hypomelanathera, fatua, sativa var. macrathera, sativa var. setulosa, sativa var. subuniflora, sativa var. montana, sativa var. sativa, sativa var. chinensis, sativa var. pilosa, sterilis ssp. sterilis, sterilis ssp. ludoviciana, strigosa |
| Avenella | flexuosa |
| Averrhoidium | paraguaiense |
| Avicennia | germinans, schaueriana |
| Axonopus | arcuatus, argentinus, aureus, brasiliensis, capillaris, chrysoblepharis, comans, compressus, equitans, fastigiatus, fissifolius, leptostachyus, marginatus, obtusifolius, pellitus, polystachyus, pressus, purpusii, rosengurttii, scoparius, siccus, succulentus, suffultus, uninodis |
| Ayapana | amygdalina |
| Ayapanopsis | esperanzae, tucumanensis |
| Ayenia | acalyphifolia, aprica, cordobensis, eliae, krapovickasii, lingulata, magna, mansfeldiana, nummularia, odonellii, praecipua, spinulosa, subtilis, tomentosa |
| Aylacophora | deserticola |
| Azara | alpina, celastrina, dentata, integrifolia, lanceolata, microphylla, petiolaris, salicifolia, serrata var. serrata, serrata var. fernandeziana, uruguayensis |
| Azolla | cristata, filiculoides |
| Azorella | acaulis, albovaginata, ameghinoi, andina, biloba, boelckei, burkartii, compacta, crassipes, cryptantha, diversifolia, echegarayi, filamentosa, fuegiana, hallei, lycopodioides, madreporica, microphylla, monantha, monteroi, nivalis, patagonica, prolifera, ranunculus, ruizii, selago, spinosa, triacantha var. triacantha, triacantha var. famatinense, trifoliolata, trifurcata, trisecta, ulicina, valentini |
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