| Aasblume | Stapelia |
| Abendmohn | Platystigma |
| Absinth | Artemisia |
| Acajubaum | Anacardium |
| Ackerdill | Anethum |
| Ackerdistel | Cirsium |
| Ackerfrauenmantel | Aphanes |
| Ackerfuchsschwanz | Amaranthus |
| Ackergauchheil | Anagallis |
| Ackerhahnenfuß | Ranunculus |
| Ackerhellerkraut | Thlaspi |
| Ackerhohlzahn | Galeopsis |
| Ackerkamille | Anthemis |
| Ackerknoblauch | Allium |
| Ackerkohl | Conringia |
| Ackerminze | Mentha |
| Ackerrittersporn | Consolida |
| Ackerrose | Rosa |
| Ackerröte | Sherardia |
| Ackerschachtelhalm | Equisetum |
| Ackersenf | Sinapis |
| Ackerspark | Spergula |
| Ackertrespe | Bromus |
| Ackervergißmeinnicht | Myosotis |
| Ackerwicke | Vicia |
| Ackerwinde | Convolvulus |
| Adlerfarn | Pteridium |
| Adonisröschen | Adonis |
| Adventsstern | Euphorbia |
| Adzukibohne | Vigna |
| Affenblume | Mimulus |
| Affenbrotbaum | Adansonia |
| Affenkakao | Herrania |
| Affodill | Asphodelus |
| Aguacate | Persea |
| Ahlbeere | Ribes |
| Ahorn | Acer |
| Ahrenheide | Bruckenthalia |
| Ährenminze | Mentha |
| Akanthus | Acanthus |
| Akazie | Acacia |
| Akazie | Robinia |
| Akee | Blighia |
| Akelei | Aquilegia |
| Akipflaume | Blighia |
| Alang-Alang-Gras | Imperata |
| Alant | lnula |
| Aleppohirse | Sorghum |
| Algarobaslinse | Vicia |
| Algiermalve | Malva |
| Algiertanne | Abies |
| Alkannawurzel | Alkanna |
| Allermannsharnisch | Allium |
| Almend | Terminalia |
| Almenrausch | Rhododendron |
| Aloe Echte | Aloe |
| Aloe, Hundertjahrige | Agave |
| Alpenampfer | Rumex |
| Alpenaster | Aster |
| Alpenaurikel | Primula |
| Alpenbalsam | Erinus |
| Alpendistel | Eryngium |
| Alpendost | Adenostyles |
| Alpenfettkraut | Pinguicula |
| Alpengelbling | Sibbaldia |
| Alpenglöckchen | Soldanella |
| Alpenglöckel | Cortusa |
| Alpenhahnenfuß | Ranunculus |
| Alpenheckenkirsche | Lonicera |
| Alpenhelmkraut | Scutellaria |
| Alpenjohannisbeere | Ribes |
| Alpenklee | Trifolium |
| Alpenknöterich | Polygonum |
| Alpenkratzdistel | Cirsium |
| Alpenkreuzdorn | Rhamnus |
| Alpenlattich | Homogyne |
| Alpenlein | Linum |
| Alpenleinkraut | Linaria |
| Alpenmargerite | Leucanthemopsis |
| Alpennelke | Dianthus |
| Alpenpechnelke | Lychnis |
| Alpenrose | Rhododendron |
| Alpenscharte | Saussurea |
| Alpenseidelbast | Daphne |
| Alpensteinquendel | Acinos |
| Alpenveilchen | Cyclamen |
| Alpenwaldrebe | Clematis |
| Alraunwurzel | Mandragora |
| Amarant | Amaranthus |
| Amarelle | Prunus |
| Amaryllis | Hippeastrum |
| Ambari | Hibiscus |
| Amberbaum | Liquidambar |
| Amberkraut | Teucrium |
| Amblabaum | Phyllanthus |
| Ameisenbaum | Cecropia |
| Ameisenknolle | Myrmecodia |
| Amerikapflaume | Prunus |
| Amla | Phyllanthus |
| Ammer | Triticum |
| Ampfer | Rumex |
| Amstelraute | Thalictrum |
| Amurrebe | Vitis |
| Ananas | Ananas |
| Ananaserdbeere | Fragaria |
| Andenbeere | Solanum |
| Andenrose | Bejaria |
| Andom | Marrubium |
| Angelikabaum | Aralia |
| Angolaerbse | Vigna |
| Angusturabaum | Galipea |
| Anis | Pimpinella |
| Annatostrauch | Bixa |
| Apfel | Malus |
| Apfelbeere | Aronia |
| Apfelminze | Mentha |
| Apfelrose | Rosa |
| Apfelsine | Citrus |
| Aprikose | Prunus |
| Araca | Psidium |
| Aralie | Schefflera |
| Arnika | Arnica |
| Aronstab | Arum |
| Artischocke | Cynara |
| Arve | Pinus |
| Aschantipfeffer | Piper |
| Asphaltklee | Aspalthium |
| Assaipalme | Euterpe |
| Asselkaktus | Pelecyphora |
| Astblume | Cladunthus |
| Aster | Aster |
| Aster | Symphyotrichum |
| Atlasblume | Clarkia |
| Atlaszeder | Cedrus |
| Attich | Sambucus |
| Aubergine | Solanum |
| Auferstehungspflanze | Selaginella |
| Augenbohne | Vigna |
| Augentrost | Euphrasia |
| Augenwurz | Athamanta |
| Aukube | Aucuba |
| Aurikel | Primula |
| Australheide | Epacris |
| Avocadobirne | Persea |
| Azaroldorn | Crataegus |