| abies alba | Yes | species | eukaryota | plants | species | 45372 | click here |
| abies pindrow | Yes | species | eukaryota | plants | species | 425843 | click here |
| abies sachalinensis | Yes | species | eukaryota | plants | species | 78264 | click here |
| abuta grandifolia | Yes | species | eukaryota | plants | species | 341013 | click here |
| acalypha diversifolia | Yes | species | eukaryota | plants | species | 681400 | click here |
| acalypha indica | Yes | species | | | species | 478095 | click here |
| acalypha macrostachya | Yes | species | eukaryota | plants | species | 681401 | click here |
| acarospora molybdina | Yes | species | eukaryota | plants | species | 318752 | click here |
| acer | Yes | | | plants | genus | 4022 | click here |
| acer macrophyllum | Yes | species | eukaryota | plants | species | 66211 | click here |
| acer platanoides | Yes | species | eukaryota | plants | species | 4025 | click here |
| acer pseudoplatanus | Yes | species | eukaryota | plants | species | 4026 | click here |
| acer rubrum | Yes | species | eukaryota | plants | species | 45314 | click here |
| acer saccharum subsp. floridanum | Yes | subspecies | eukaryota | plants | subspecies | 369785 | click here |
| acer tataricum subsp. ginnala | Yes | subspecies | eukaryota | plants | subspecies | 57656 | click here |
| achillea millefolium | Yes | species | eukaryota | plants | species | 13329 | click here |
| acianthus pusillus | Yes | species | eukaryota | plants | species | 179754 | click here |
| acleisanthes lanceolata | Yes | species | eukaryota | plants | species | 117596 | click here |
| acleris forsskaleana | Yes | species | eukaryota | invertebrates | species | 572801 | click here |
| acleris sparsana | Yes | species | eukaryota | invertebrates | species | 758717 | click here |
| acrida cinerea | Yes | species | eukaryota | invertebrates | species | 244713 | click here |
| acromyrmex crassispinus | Yes | species | eukaryota | invertebrates | species | 230684 | click here |
| acromyrmex versicolor | Yes | species | eukaryota | invertebrates | species | 411731 | click here |
| acropora formosa | Yes | species | eukaryota | invertebrates | species | 126732 | click here |
| acrostichum aureum | Yes | species | eukaryota | plants | species | 29594 | click here |
| actinidia chinensis | Yes | species | eukaryota | plants | species | 3625 | click here |
| actinidia deliciosa | Yes | species | eukaryota | plants | species | 3627 | click here |
| actinostemon concolor | Yes | species | eukaryota | plants | species | 344420 | click here |
| adelia triloba | Yes | species | eukaryota | plants | species | 353064 | click here |
| adenaria floribunda | Yes | species | eukaryota | plants | species | 312915 | click here |
| adenocalymma cladotrichum | Yes | species | eukaryota | plants | species | 354011 | click here |
| adenocystis utricularis | Yes | species | eukaryota | plants | species | 64923 | click here |
| adiantum serratodentatum | Yes | species | eukaryota | plants | species | 434440 | click here |
| aechmea magdalenae | Yes | species | | | species | 1123423 | click here |
| aedes aegypti | Yes | species | eukaryota | invertebrates | species | 7159 | click here |
| aegiceras corniculatum | Yes | species | eukaryota | plants | species | 59970 | click here |
| aegiphila cephalophora | Yes | species | | | species | 1123424 | click here |
| aegle marmelos | Yes | species | eukaryota | plants | species | 68527 | click here |
| aeschynomene sensitiva | Yes | species | eukaryota | plants | species | 552036 | click here |
| aesculus hippocastanum | Yes | species | eukaryota | plants | species | 43364 | click here |
| agaricus bisporus | Yes | species | eukaryota | plants | species | 5341 | click here |
| agave palmeri | Yes | species | | | species | 1485086 | click here |
| ageratina | Yes | | | plants | genus | 102749 | click here |
| ageratina adenophora | Yes | species | eukaryota | plants | species | 176616 | click here |
| ageratina altissima | Yes | species | eukaryota | plants | species | 102750 | click here |
| agriopis marginaria | Yes | species | eukaryota | invertebrates | species | 190331 | click here |
| agropyron cristatum | Yes | species | eukaryota | plants | species | 4593 | click here |
| ajuga parviflora | Yes | species | | | species | 1585252 | click here |
| alchornea costaricensis | Yes | species | | | species | 1123430 | click here |
| alchornea latifolia | Yes | species | eukaryota | plants | species | 681403 | click here |
| alibertia edulis | Yes | species | eukaryota | plants | species | 58508 | click here |
| allantoparmelia alpicola | Yes | species | eukaryota | plants | species | 180470 | click here |
| alnus acuminata | Yes | species | eukaryota | plants | species | 109057 | click here |
| alnus glutinosa | Yes | species | eukaryota | plants | species | 3517 | click here |
| alnus nitida | Yes | species | eukaryota | plants | species | 109470 | click here |
| alpinia malaccensis | Yes | species | eukaryota | plants | species | 105677 | click here |
| alstonia scholaris | Yes | species | eukaryota | plants | species | 52822 | click here |
| alternanthera sessilis | Yes | species | eukaryota | plants | species | 221762 | click here |
| amaioua glomerulata | Yes | species | eukaryota | plants | species | 136669 | click here |
| amanita muscaria | Yes | species | eukaryota | plants | species | 41956 | click here |
| amaranthus hybridus | Yes | species | eukaryota | plants | species | 3565 | click here |
| ambrosia artemisiifolia | Yes | species | eukaryota | plants | species | 4212 | click here |
| ammophila arenaria | Yes | species | eukaryota | plants | species | 96047 | click here |
| ammophila breviligulata | Yes | species | eukaryota | plants | species | 286491 | click here |
| amphilophium crucigerum | Yes | species | eukaryota | plants | species | 354032 | click here |
| amphipyra berbera | Yes | species | eukaryota | invertebrates | species | 987877 | click here |
| anacamptis laxiflora | Yes | species | eukaryota | plants | species | 59336 | click here |
| anacardium excelsum | Yes | species | eukaryota | plants | species | 638922 | click here |
| anacardium occidentale | Yes | species | eukaryota | plants | species | 171929 | click here |
| andropogon gerardii | Yes | species | eukaryota | plants | species | 79824 | click here |
| andropogon virginicus | Yes | species | | | species | 1079125 | click here |
| anemone rivularis | Yes | species | eukaryota | plants | species | 168006 | click here |
| annelida | Yes | | | invertebrates | phylum | 6340 | click here |
| annona acuminata | Yes | species | eukaryota | plants | species | 681406 | click here |
| annona glabra | Yes | species | eukaryota | plants | species | 301703 | click here |
| annona hypoglauca | Yes | species | eukaryota | plants | species | 502533 | click here |
| annona muricata | Yes | species | eukaryota | plants | species | 13337 | click here |
| annona purpurea | Yes | species | | | species | 1123437 | click here |
| annona spraguei | Yes | species | eukaryota | plants | species | 681407 | click here |
| annona squamosa | Yes | species | eukaryota | plants | species | 301693 | click here |
| anoectochilus roxburghii | Yes | species | eukaryota | plants | species | 569774 | click here |
| anthoxanthum nipponicum | Yes | species | eukaryota | plants | species | 669625 | click here |
| anthoxanthum odoratum | Yes | species | eukaryota | plants | species | 29661 | click here |
| anthurium brownii | Yes | species | | | species | 1366130 | click here |
| anthurium lancea | Yes | species | | | species | 1078254 | click here |
| anthyllis barba-jovis | Yes | no rank | eukaryota | plants | species | 168127 | click here |
| apeiba membranacea | Yes | species | eukaryota | plants | species | 681408 | click here |
| apeiba tibourbou | Yes | species | eukaryota | plants | species | 82398 | click here |
| aphelandra aurantiaca | Yes | species | eukaryota | plants | species | 328103 | click here |
| aphelandra sinclairiana | Yes | species | eukaryota | plants | species | 4187 | click here |
| aquilaria crassna | Yes | species | eukaryota | plants | species | 223751 | click here |
| aquilaria malaccensis | Yes | species | eukaryota | plants | species | 223753 | click here |
| aquilaria sinensis | Yes | species | eukaryota | plants | species | 210372 | click here |
| arabidopsis thaliana | Yes | species | eukaryota | plants | species | 3702 | click here |
| aralia nudicaulis | Yes | species | eukaryota | plants | species | 45207 | click here |
| arbutus menziesii | Yes | species | eukaryota | plants | species | 82758 | click here |
| arbutus unedo | Yes | species | eukaryota | plants | species | 84005 | click here |
| archips podanus | Yes | species | eukaryota | invertebrates | species | 758721 | click here |
| archips xylosteana | Yes | species | | | species | 1100919 | click here |
| ardisia revoluta | Yes | species | eukaryota | plants | species | 671251 | click here |