| abies | Yes | | | plants | genus | 3319 | click here |
| abies alba | Yes | species | eukaryota | plants | species | 45372 | click here |
| abies balsamea | Yes | species | eukaryota | plants | species | 90345 | click here |
| abies beshanzuensis | Yes | species | eukaryota | plants | species | 123605 | click here |
| abies firma | Yes | species | eukaryota | plants | species | 78260 | click here |
| abies holophylla | Yes | species | eukaryota | plants | species | 97168 | click here |
| abies koreana | Yes | species | eukaryota | plants | species | 97170 | click here |
| abies nephrolepis | Yes | species | eukaryota | plants | species | 97171 | click here |
| abies nordmanniana | Yes | species | eukaryota | plants | species | 97177 | click here |
| abutilon theophrasti | Yes | species | eukaryota | plants | species | 3631 | click here |
| acacia | Yes | | | plants | genus | 3808 | click here |
| acacia confusa | Yes | species | eukaryota | plants | species | 3809 | click here |
| acacia mangium | Yes | species | eukaryota | plants | species | 224085 | click here |
| acacia melanoxylon | Yes | species | eukaryota | plants | species | 138028 | click here |
| acacia pubescens | Yes | species | eukaryota | plants | species | 383656 | click here |
| acalypha | Yes | | | plants | genus | 20025 | click here |
| acalypha diversifolia | Yes | species | eukaryota | plants | species | 681400 | click here |
| acanthophora spicifera | Yes | species | eukaryota | plants | species | 385024 | click here |
| acca sellowiana | Yes | species | eukaryota | plants | species | 260130 | click here |
| acer | Yes | | | plants | genus | 4022 | click here |
| acer campestre | Yes | species | eukaryota | plants | species | 66205 | click here |
| acer cappadocicum | Yes | species | eukaryota | plants | species | 169053 | click here |
| acer hyrcanum | Yes | species | eukaryota | plants | species | 290838 | click here |
| acer morrisonense | Yes | species | eukaryota | plants | species | 934068 | click here |
| acer negundo | Yes | species | eukaryota | plants | species | 4023 | click here |
| acer opalus | Yes | species | eukaryota | plants | species | 168567 | 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 | Yes | species | eukaryota | plants | species | 4024 | click here |
| acer spicatum | Yes | species | eukaryota | plants | species | 57652 | click here |
| achillea millefolium | Yes | species | eukaryota | plants | species | 13329 | click here |
| achyrocline satureioides | Yes | species | eukaryota | plants | species | 746493 | click here |
| aciotis indecora | Yes | species | eukaryota | plants | species | 121089 | click here |
| aconitum heterophyllum | Yes | species | eukaryota | plants | species | 279769 | click here |
| acromyrmex crassispinus | Yes | species | eukaryota | invertebrates | species | 230684 | click here |
| actiniaria | Yes | | | invertebrates | order | 6103 | click here |
| actinidia chinensis | Yes | species | eukaryota | plants | species | 3625 | click here |
| actinidia deliciosa | Yes | species | eukaryota | plants | species | 3627 | click here |
| adansonia digitata | Yes | species | eukaryota | plants | species | 69109 | click here |
| adansonia gregorii | Yes | species | eukaryota | plants | species | 69110 | click here |
| adenium obesum | Yes | species | eukaryota | plants | species | 69375 | click here |
| aegiceras corniculatum | Yes | species | eukaryota | plants | species | 59970 | click here |
| aegle marmelos | Yes | species | eukaryota | plants | species | 68527 | click here |
| aesculus hippocastanum | Yes | species | eukaryota | plants | species | 43364 | click here |
| agathis australis | Yes | species | eukaryota | plants | species | 58027 | click here |
| agave salmiana | Yes | species | eukaryota | plants | species | 332343 | click here |
| ageratina adenophora | Yes | species | eukaryota | plants | species | 176616 | click here |
| agrostis | Yes | | | plants | genus | 15297 | click here |
| agrostis stolonifera | Yes | species | eukaryota | plants | species | 63632 | click here |
| agrostis stolonifera var. palustris | Yes | varietas | eukaryota | plants | varietas | 62759 | click here |
| ahnfeltiopsis flabelliformis | Yes | species | eukaryota | plants | species | 38507 | click here |
| ailanthus altissima | Yes | species | eukaryota | plants | species | 23810 | click here |
| ailuropoda melanoleuca | Yes | species | eukaryota | mammals | species | 9646 | click here |
| akebia trifoliata | Yes | species | eukaryota | plants | species | 155132 | click here |
| alangium salviifolium | Yes | species | eukaryota | plants | species | 616984 | click here |
| albizia | Yes | | | plants | genus | 3812 | click here |
| albizia lebbeck | Yes | species | eukaryota | plants | species | 371650 | click here |
| alcyonacea | Yes | | | invertebrates | order | 40677 | click here |
| alfaroa costaricensis | Yes | species | eukaryota | plants | species | 139922 | click here |
| allamanda cathartica | Yes | species | eukaryota | plants | species | 52818 | click here |
| allophylus | Yes | | | plants | genus | 201004 | click here |
| alnus | Yes | | | plants | genus | 3515 | click here |
| alnus acuminata | Yes | species | eukaryota | plants | species | 109057 | click here |
| alnus cordata | Yes | species | eukaryota | plants | species | 109058 | click here |
| alnus formosana | Yes | species | eukaryota | plants | species | 109060 | click here |
| alnus glutinosa | Yes | species | eukaryota | plants | species | 3517 | click here |
| alnus incana | Yes | species | eukaryota | plants | species | 3516 | click here |
| alnus japonica | Yes | species | eukaryota | plants | species | 109063 | click here |
| aloe vera | Yes | species | eukaryota | plants | species | 34199 | click here |
| alpinia officinarum | Yes | species | eukaryota | plants | species | 199623 | click here |
| alpinia zerumbet | Yes | species | eukaryota | plants | species | 97723 | click here |
| alstonia scholaris | Yes | species | eukaryota | plants | species | 52822 | click here |
| alzatea verticillata | Yes | species | eukaryota | plants | species | 39982 | click here |
| amandinea | Yes | | | plants | genus | 116785 | click here |
| amaranthus hybridus | Yes | species | eukaryota | plants | species | 3565 | click here |
| amelanchier ovalis | Yes | species | eukaryota | plants | species | 1000415 | click here |
| amentotaxus yunnanensis | Yes | species | eukaryota | plants | species | 89479 | click here |
| ammophila arenaria | Yes | species | eukaryota | plants | species | 96047 | click here |
| amomum subulatum | Yes | species | | | species | 1008370 | click here |
| amomum tsao-ko | Yes | no rank | eukaryota | plants | species | 252867 | click here |
| amomum villosum | Yes | species | eukaryota | plants | species | 199627 | click here |
| amorpha fruticosa | Yes | species | eukaryota | plants | species | 48131 | click here |
| ampelodesmos mauritanicus | Yes | species | eukaryota | plants | species | 66000 | click here |
| ampelopsis japonica | Yes | species | eukaryota | plants | species | 714442 | click here |
| anacardium excelsum | Yes | species | eukaryota | plants | species | 638922 | click here |
| anacardium occidentale | Yes | species | eukaryota | plants | species | 171929 | click here |
| ananas comosus | Yes | species | eukaryota | plants | species | 4615 | click here |
| anaptychia isidiza | Yes | species | eukaryota | plants | species | 553285 | click here |
| andrographis paniculata | Yes | species | eukaryota | plants | species | 175694 | click here |
| andropogon gerardii | Yes | species | eukaryota | plants | species | 79824 | click here |
| anemone rivularis | Yes | species | eukaryota | plants | species | 168006 | click here |
| annona reticulata | Yes | species | eukaryota | plants | species | 301862 | click here |
| annona squamosa | Yes | species | eukaryota | plants | species | 301693 | click here |
| anoectochilus roxburghii | Yes | species | eukaryota | plants | species | 569774 | click here |
| anthoxanthum odoratum | Yes | species | eukaryota | plants | species | 29661 | click here |
| anthozoa | Yes | | | invertebrates | class | 6101 | click here |
| anthurium andraeanum | Yes | species | eukaryota | plants | species | 226677 | click here |
| aplysina cavernicola | Yes | species | eukaryota | invertebrates | species | 121477 | click here |
| aquilaria malaccensis | Yes | species | eukaryota | plants | species | 223753 | click here |