| abelmoschus esculentus | Yes | species | eukaryota | plants | species | 455045 | click here |
| 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 cephalonica | Yes | species | eukaryota | plants | species | 74306 | click here |
| abies concolor | Yes | species | eukaryota | plants | species | 97173 | click here |
| abies fraseri | Yes | species | eukaryota | plants | species | 97172 | click here |
| abies grandis | Yes | species | eukaryota | plants | species | 46611 | click here |
| abies holophylla | Yes | species | eukaryota | plants | species | 97168 | click here |
| abies koreana | Yes | species | eukaryota | plants | species | 97170 | click here |
| abies lasiocarpa | Yes | species | eukaryota | plants | species | 34340 | click here |
| abies magnifica | Yes | species | eukaryota | plants | species | 3320 | click here |
| abies nordmanniana | Yes | species | eukaryota | plants | species | 97177 | click here |
| abrornis inornata | Yes | species | eukaryota | vertebrates | species | 56436 | click here |
| abutilon | Yes | | | plants | genus | 3630 | click here |
| abutilon theophrasti | Yes | species | eukaryota | plants | species | 3631 | click here |
| acacia | Yes | | | plants | genus | 3808 | click here |
| acacia calcicola | Yes | species | eukaryota | plants | species | 138513 | click here |
| acacia confusa | Yes | species | eukaryota | plants | species | 3809 | click here |
| acacia dealbata | Yes | species | eukaryota | plants | species | 205042 | click here |
| acacia oswaldii | Yes | species | eukaryota | plants | species | 139013 | click here |
| acacia papyrocarpa | Yes | species | eukaryota | plants | species | 694554 | click here |
| acacia retinodes | Yes | species | | | species | 1050817 | click here |
| acalypha | Yes | | | plants | genus | 20025 | click here |
| acalypha hispida | Yes | species | eukaryota | plants | species | 197604 | click here |
| accipiter nisus | Yes | species | eukaryota | vertebrates | species | 211598 | click here |
| acer buergerianum | Yes | species | eukaryota | plants | species | 57649 | click here |
| acer campestre | Yes | species | eukaryota | plants | species | 66205 | click here |
| acer davidii | Yes | species | eukaryota | plants | species | 168559 | click here |
| acer japonicum | Yes | species | eukaryota | plants | species | 47966 | click here |
| acer oliverianum | Yes | species | eukaryota | plants | species | 171216 | click here |
| acer palmatum | Yes | species | eukaryota | plants | species | 66201 | click here |
| acer rubrum | Yes | species | eukaryota | plants | species | 45314 | click here |
| acer saccharum | Yes | species | eukaryota | plants | species | 4024 | click here |
| achillea | Yes | | | plants | genus | 13328 | click here |
| achillea millefolium | Yes | species | eukaryota | plants | species | 13329 | click here |
| aciphylla | Yes | | | plants | genus | 48023 | click here |
| acnistus arborescens | Yes | species | eukaryota | plants | species | 362341 | click here |
| aconitum | Yes | | | plants | genus | 49188 | click here |
| acrocephalus | Yes | | | vertebrates | genus | 39620 | click here |
| acrocephalus arundinaceus | Yes | species | eukaryota | vertebrates | species | 39621 | click here |
| acrocephalus palustris | Yes | species | eukaryota | vertebrates | species | 68475 | click here |
| acrocephalus schoenobaenus | Yes | species | eukaryota | vertebrates | species | 52609 | click here |
| acrocephalus scirpaceus | Yes | species | eukaryota | vertebrates | species | 48156 | click here |
| actinidia deliciosa | Yes | species | eukaryota | plants | species | 3627 | click here |
| actinodaphne acuminata | Yes | species | | | species | 796729 | click here |
| actophilornis africanus | Yes | species | eukaryota | vertebrates | species | 118783 | click here |
| adenocarpus foliolosus | Yes | species | eukaryota | plants | species | 49789 | click here |
| adenocarpus viscosus | Yes | species | eukaryota | plants | species | 49791 | click here |
| adenostoma fasciculatum | Yes | species | eukaryota | plants | species | 140993 | click here |
| adonidia merrillii | Yes | species | eukaryota | plants | species | 292693 | click here |
| adonis vernalis | Yes | species | eukaryota | plants | species | 46985 | click here |
| aechmophorus occidentalis | Yes | species | eukaryota | vertebrates | species | 57236 | click here |
| aegopodium podagraria | Yes | species | eukaryota | plants | species | 40902 | click here |
| aerodramus | Yes | | | vertebrates | genus | 46474 | click here |
| aerodramus elaphrus | Yes | species | eukaryota | vertebrates | species | 46476 | click here |
| aerodramus francicus | Yes | species | eukaryota | vertebrates | species | 46477 | click here |
| aerodramus fuciphagus vestitus | Yes | subspecies | eukaryota | vertebrates | subspecies | 46479 | click here |
| aerodramus mearnsi | Yes | species | eukaryota | vertebrates | species | 243318 | click here |
| aerodramus papuensis | Yes | species | eukaryota | vertebrates | species | 326917 | click here |
| aerodramus spodiopygius assimilis | Yes | subspecies | eukaryota | vertebrates | subspecies | 46483 | click here |
| aerodramus spodiopygius spodiopygius | Yes | subspecies | eukaryota | vertebrates | subspecies | 46484 | click here |
| aesculus hippocastanum | Yes | species | eukaryota | plants | species | 43364 | click here |
| aextoxicon punctatum | Yes | species | eukaryota | plants | species | 39268 | click here |
| agave | Yes | | | plants | genus | 39509 | click here |
| agave angustifolia | Yes | species | eukaryota | plants | species | 382117 | click here |
| agave sisalana | Yes | species | eukaryota | plants | species | 442491 | click here |
| agelaius phoeniceus | Yes | species | eukaryota | vertebrates | species | 39638 | click here |
| ageratina adenophora | Yes | species | eukaryota | plants | species | 176616 | click here |
| ageratina altissima | Yes | species | eukaryota | plants | species | 102750 | click here |
| ageratum conyzoides | Yes | species | eukaryota | plants | species | 68299 | click here |
| ailanthus altissima | Yes | species | eukaryota | plants | species | 23810 | click here |
| ailuroedus crassirostris | Yes | species | eukaryota | vertebrates | species | 34925 | click here |
| ajuga | Yes | | | plants | genus | 38595 | click here |
| alauda arvensis | Yes | species | eukaryota | vertebrates | species | 88112 | click here |
| alca torda | Yes | species | eukaryota | vertebrates | species | 28689 | click here |
| alcea | Yes | | | plants | genus | 65556 | click here |
| alcea rosea | Yes | species | eukaryota | plants | species | 65557 | click here |
| alcedo leucogaster | Yes | species | eukaryota | vertebrates | species | 325337 | click here |
| alcedo quadribrachys | Yes | species | eukaryota | vertebrates | species | 325338 | click here |
| alcippe morrisonia | Yes | species | eukaryota | vertebrates | species | 204791 | click here |
| aleadryas rufinucha | Yes | species | eukaryota | vertebrates | species | 461220 | click here |
| alectura lathami | Yes | species | eukaryota | vertebrates | species | 81907 | click here |
| alethe castanea | Yes | species | eukaryota | vertebrates | species | 228309 | click here |
| alethe diademata | Yes | species | eukaryota | vertebrates | species | 197521 | click here |
| alle alle | Yes | species | eukaryota | vertebrates | species | 28691 | click here |
| allium | Yes | | | plants | genus | 4678 | click here |
| allium ampeloprasum | Yes | species | eukaryota | plants | species | 4681 | click here |
| allium cepa | Yes | species | eukaryota | plants | species | 4679 | click here |
| allium cepa var. aggregatum | Yes | varietas | eukaryota | plants | varietas | 28911 | click here |
| allium sativum | Yes | species | eukaryota | plants | species | 4682 | click here |
| allium triquetrum | Yes | species | eukaryota | plants | species | 74902 | click here |
| allium tuberosum | Yes | species | eukaryota | plants | species | 4683 | click here |
| allocasuarina verticillata | Yes | species | eukaryota | plants | species | 29736 | click here |
| alnus | Yes | | | plants | genus | 3515 | 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 |
| alocasia macrorrhizos | Yes | species | eukaryota | plants | species | 4456 | click here |
| alopochen aegyptiacus | Yes | species | eukaryota | vertebrates | species | 30382 | click here |