| mimusops elengi | Yes | species | eukaryota | plants | species | 233715 | click here |
| miquelia | Yes | | | | genus | 1088658 | click here |
| miscanthus x giganteus | Yes | subspecies | eukaryota | plants | species | 183674 | click here |
| monarda citriodora | Yes | species | eukaryota | plants | species | 182379 | click here |
| monstera deliciosa | Yes | species | eukaryota | plants | species | 174217 | click here |
| moquiniastrum polymorphum | Yes | species | eukaryota | plants | species | 130259 | click here |
| morchella esculenta | Yes | species | eukaryota | plants | species | 39407 | click here |
| morchella tridentina | Yes | species | | | species | 1582345 | click here |
| morella rubra | Yes | species | eukaryota | plants | species | 262757 | click here |
| morinda citrifolia | Yes | species | eukaryota | plants | species | 43522 | click here |
| morinda coreia | Yes | species | eukaryota | plants | species | 659038 | click here |
| morus | Yes | | | plants | genus | 3497 | click here |
| morus alba | Yes | species | eukaryota | plants | species | 3498 | click here |
| morus australis | Yes | species | eukaryota | plants | species | 66392 | click here |
| murraya | Yes | | | plants | genus | 43710 | click here |
| musa | Yes | | | plants | genus | 4640 | click here |
| musa acuminata | Yes | species | eukaryota | plants | species | 4641 | click here |
| musa acuminata aaa group | Yes | no rank | eukaryota | plants | no rank | 214697 | click here |
| musa balbisiana | Yes | species | eukaryota | plants | species | 52838 | click here |
| musa itinerans | Yes | species | eukaryota | plants | species | 574487 | click here |
| musa sp. | Yes | no rank | eukaryota | plants | species | 46838 | click here |
| myelochroa | Yes | | | plants | genus | 237034 | click here |
| myelochroa aurulenta | Yes | species | eukaryota | plants | species | 358640 | click here |
| myelochroa entotheiochroa | Yes | species | eukaryota | plants | species | 373585 | click here |
| myelochroa indica | Yes | species | eukaryota | plants | species | 485250 | click here |
| myotis daubentonii | Yes | species | eukaryota | mammals | species | 98922 | click here |
| myrceugenia ovata | Yes | species | eukaryota | plants | species | 375247 | click here |
| myrcia fallax | Yes | species | eukaryota | plants | species | 375252 | click here |
| myrciaria dubia | Yes | species | eukaryota | plants | species | 468946 | click here |
| myricaria laxiflora | Yes | species | eukaryota | plants | species | 223224 | click here |
| myristica fragrans | Yes | species | eukaryota | plants | species | 51089 | click here |
| myristicaceae | Yes | | | plants | family | 22274 | click here |
| myrsine seguinii | Yes | species | eukaryota | plants | species | 276780 | click here |
| myrtillocactus geometrizans | Yes | species | eukaryota | plants | species | 336127 | click here |
| myrtus communis | Yes | species | eukaryota | plants | species | 119949 | click here |
| nageia fleuryi | Yes | species | eukaryota | plants | species | 147279 | click here |
| nageia nagi | Yes | species | eukaryota | plants | species | 36012 | click here |
| narcissus pseudonarcissus | Yes | species | eukaryota | plants | species | 39639 | click here |
| nassella pulchra | Yes | species | eukaryota | plants | species | 796700 | click here |
| nectandra cuspidata | Yes | species | eukaryota | plants | species | 128647 | click here |
| nekemias grossedentata | Yes | species | eukaryota | plants | species | 416090 | click here |
| nelumbo nucifera | Yes | species | eukaryota | plants | species | 4432 | click here |
| nenga pumila | Yes | species | eukaryota | plants | species | 131288 | click here |
| neocheiropteris ovata | Yes | species | eukaryota | plants | species | 504320 | click here |
| neottia ovata | Yes | species | eukaryota | plants | species | 29712 | click here |
| nepenthes ampullaria | Yes | species | eukaryota | plants | species | 150949 | click here |
| nephelium lappaceum | Yes | species | eukaryota | plants | species | 151071 | click here |
| nephrolepis biserrata | Yes | species | eukaryota | plants | species | 389499 | click here |
| nephrolepis undulata | Yes | species | eukaryota | plants | species | 910283 | click here |
| nephroma laevigatum | Yes | species | eukaryota | plants | species | 203386 | click here |
| nertera granadensis | Yes | species | eukaryota | plants | species | 43534 | click here |
| neurolaena lobata | Yes | species | eukaryota | plants | species | 183056 | click here |
| nicotiana benthamiana | Yes | species | eukaryota | plants | species | 4100 | click here |
| nicotiana glauca | Yes | species | eukaryota | plants | species | 4090 | click here |
| nicotiana tabacum | Yes | species | eukaryota | plants | species | 4097 | click here |
| nonea lutea | Yes | species | eukaryota | plants | species | 256492 | click here |
| nothapodytes nimmoniana | Yes | species | eukaryota | plants | species | 159386 | click here |
| nothapodytes nimmoniana | Yes | species | eukaryota | plants | species | 561077 | click here |
| nothofagaceae | Yes | | | plants | family | 26778 | click here |
| nothofagus dombeyi | Yes | species | eukaryota | plants | species | 28940 | click here |
| nothofagus pumilio | Yes | species | eukaryota | plants | species | 28950 | click here |
| notopleura polyphlebia | Yes | species | | | species | 1129520 | click here |
| nypa fruticans | Yes | species | eukaryota | plants | species | 4718 | click here |
| ocimum tenuiflorum | Yes | species | eukaryota | plants | species | 204149 | click here |
| ocotea | Yes | | | plants | genus | 63801 | click here |
| odontoschisma prostratum | Yes | species | | | species | 526359 | click here |
| odontotermes | Yes | | | invertebrates | genus | 60587 | click here |
| odontotermes formosanus | Yes | species | eukaryota | invertebrates | species | 60588 | click here |
| odontotermes longignathus | Yes | species | eukaryota | invertebrates | species | 144741 | click here |
| odontotermes obesus | Yes | species | eukaryota | invertebrates | species | 483037 | click here |
| oenocarpus mapora | Yes | species | eukaryota | plants | species | 446121 | click here |
| olea | Yes | | | plants | genus | 4145 | click here |
| olea dioica | Yes | species | eukaryota | plants | species | 764601 | click here |
| olea europaea | Yes | species | eukaryota | plants | species | 4146 | click here |
| oleandra articulata | Yes | species | eukaryota | plants | species | 449867 | click here |
| oncidium | Yes | | | plants | genus | 45173 | click here |
| oncosperma | Yes | | | plants | genus | 145696 | click here |
| opegrapha | Yes | | | plants | genus | 91479 | click here |
| opegrapha medusulina | Yes | species | | | species | 1016806 | click here |
| ophiocordyceps highlandensis | Yes | species | | | species | 1673893 | click here |
| oplismenus undulatifolius | Yes | species | eukaryota | plants | species | 435762 | click here |
| opuntia cochenillifera | Yes | species | eukaryota | plants | species | 338184 | click here |
| opuntia humifusa | Yes | species | eukaryota | plants | species | 446152 | click here |
| orchidaceae | Yes | | | plants | family | 4747 | click here |
| oreopanax nicaraguensis | Yes | species | eukaryota | plants | species | 242304 | click here |
| oryza australiensis | Yes | species | eukaryota | plants | species | 4532 | click here |
| oryza granulata | Yes | species | eukaryota | plants | species | 110450 | click here |
| oryza rufipogon | Yes | species | eukaryota | plants | species | 4529 | click here |
| oryza sativa | Yes | species | eukaryota | plants | species | 4530 | click here |
| oryza sp. | Yes | no rank | eukaryota | plants | species | 52841 | click here |
| osmanthus | Yes | | | plants | genus | 93976 | click here |
| osmanthus fragrans | Yes | species | eukaryota | plants | species | 93977 | click here |
| osmunda japonica | Yes | species | eukaryota | plants | species | 90693 | click here |
| ostrya carpinifolia | Yes | species | eukaryota | plants | species | 176865 | click here |
| ottoschulzia rhodoxylon | Yes | species | | | species | 1401045 | click here |
| oxytropis kansuensis | Yes | species | | | species | 545221 | click here |
| pachira macrocarpa | Yes | species | eukaryota | plants | species | 197125 | click here |
| pachystachys lutea | Yes | species | eukaryota | plants | species | 76374 | click here |
| pacifigorgia | Yes | | | invertebrates | genus | 204373 | click here |
| padina pavonica | Yes | species | eukaryota | plants | species | 531984 | click here |