| Aa |
achalensis |
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| Abrotanella |
diemii, emarginata, trilobata |
| Acacia |
atramentaria |
| Acaena |
caespitosa, confertissima, lucida, myriophylla, patagonica, stricta, tenera |
| Acalypha |
friesii, schreiteri |
| Acanthocalycium |
ferrarii, glaucum, klimpelianum, spiniflorum, thionanthum |
| Acantholippia |
riojana, seriphioides |
| Achyrocline |
rupestris |
| Adesmia |
aconcaguensis, acuta, adrianii, ameghinoi, aphanantha, arenicola, atuelensis, aueri, aurantiaca, australis, boelckeana, bonariensis, burkartii, caespitosa, candida, coluteoides, cordobensis, coronilloides , crassicaulis , cytisoides, digitata, filipes, friesii, glandulifolia, globosa, graminidea, grandiflora, guttulifera, hemisphaerica, hunzikeri, inflexa, jilesiana, karraikensis, leptobotrys, lihuelensis, lotoides, macrostachya, mendozana, minor, nanolignea, neglecta, neuquenensis, obcordata, pampeana, patagonica, pentaphylla, pinifolia, pseudogrisea, pseudoincana, pumila, quadripinnata, ragonesei, rahmeri, renjifoana, retrofracta, retusa, riojana, ruizlealii, salamancensis, salicornioides, sandwithii, sanjuanensis, serrana, silvestrii, smithiae, stenocaulon, suffocata, tehuelcha, trifoliolata, trijuga, tunuianica, uspallatensis, villosa |
| Agropyron |
scabriglume |
| Agrostis |
ambatoensis |
| Alchemilla |
asplenifolia, grisebachiana |
| Allenrolfea |
patagonica, vaginata |
| Aloysia |
castellanosii, catamarcensis |
| Alstroemeria |
bakeri, pseudopathulata |
| Alternanthera |
cana, cinerella, collina, pumila, suessenguthii |
| Amaranthus |
crispus, hunzikeri, kloosianus, mantegazzianus, pedersenianus, persimilis, vulgatissimus |
| Amblystigma |
cionophorum |
| Ameghinoa |
patagonica |
| Amelichloa |
ambigua |
| Ammoselinum |
rosengurtii |
| Anacampseros |
kurtzii, vulcanensis |
| Anarthrophyllum |
burkartii, capitatum, catamarcense, desideratum, elegans, gayanum, macrophyllum, ornithopodum, patagonicum, pedicellatum, strigulipetalum, subandinum |
| Anathallis |
johnsonii |
| Anatherostipa |
brevis, henrardiana |
| Andropogon |
coloratus |
| Androsace |
salasii |
| Angelphytum |
hieronymi |
| Antennaria |
sleumeri |
| Anthericum |
argentinense, hickenianum, volcanense |
| Antonella |
nicorae |
| Aonikena |
patagonica |
| Aphanostelma |
micranthum, tubatum, volcanense |
| Aphelandra |
lilacina |
| Aphyllocladus |
decussatus, ephedroides, sanmartinianus |
| Apium |
commersonii |
| Apurimacia |
dolichocarpa |
| Arachis |
monticola |
| Arenaria |
achalensis, catamarcensis, pycnophylloides, rivularis |
| Argylia |
robusta |
| Argythamnia |
argentinensis, catamarcensis, jablonszkyana, malpighipila |
| Aristida |
minutiflora, multiramea, nicorae, pedroensis, pubescens, sayapensis, subulata, trachyantha, valida, vexativa, victoriana |
| Aristolochia |
melanoglossa, oranensis, stuckertii |
| Arjona |
longifolia |
| Artemisia |
echegarayi, magellanica, mendozana |
| Asplenium |
argentinum, castaneum, gilliesii |
| Aster |
patagonicus |
| Asteriscium |
argentinum, famatinense, fimbriatum, glaucum, novarae |
| Astragalus |
ameghinoi, anni-novi, argentinus, austroargentinus, bellus, bergii, boelckei, bonariensis, burkartii, carinatus, chubutensis, colhuensis, complicatus, crypticus, cuyanus, darumbium, darwinianus, distinens, fabrisii, famatinae, hickenii, illinii, joergensenii, magellanicus, mendocinus, monticola, moyanoi, nelidae, neoburkartianus, neocarpus, neuquenensis, nicorae, nivicola, parodii, patagonicus, pauranthus, pulviniformis, punae, ruizlealii, sanctae-crucis, spegazzinii, tehuelches |
| Atriplex |
ameghinoi, argentina, boecheri, braunii, cordobensis, crenatifolia, frigida, lampa, lithophila, mendozensis, patagonica, quixadensis, sagittifolia, sorianoi, spegazzinii, undulata |
| Austrocactus |
bertinii, gracilis, philippii |
| Austropeucedanum |
oreopansil |
| Ayapanopsis |
dydima |
| Ayenia |
cordobensis, lingulata, subtilis |
| Aylacophora |
deserticola |
| Azorella |
crassipes, filamentosa, fuegiana, patagonica |
