| Subject | English | Latin |
| zool. | Abyssinian yellow-rumped seedeater | Serinus xanthopygius |
| zool. | Alaska yellow-wagtail | Motacilla flava tschutschensis |
| biol. | albizzia yellow butterfly | Terias hecabe L. |
| zool. | Ambon yellow white-eye | Zosterops kuehni |
| biol. | annual yellow sweet clover | Melilotus arvensis Wallr. |
| biol. | annual yellow sweet clover | Melilotus indicus Desr. |
| zool. | aral yellow souslik | Citellus fulvus |
| zool. | Australian yellow white-eye | Zosterops luteus |
| biol. | barley yellow leaf spot | Pyrenophora trichostoma Fr. Fuckel |
| biol. | barley yellow leaf-miner fly | Cerodonta denticornis Panzer |
| biol. | barley yellow leafminer fly | Cerodontha denticornis Panzer |
| biol. | bean yellow mosaic virus | Bean virus 2 (Pierce) |
| biol. | bean yellow mosaic virus | Phaseolus virus 2 (Smith) |
| biol. | beet yellow virus | Jaunisse virus (Ro land) |
| biol. | beet yellow virus | Corium batae (Holmes) |
| zool. | black-and-yellow silky-flycatcher | Phainoptila melanoxantha |
| zool. | black-crested yellow bulbul | Pycnonotus melanicterus flaviventris |
| zool. | black-headed yellow bulbul | Pycnonotus melanicterus melanicterus |
| biol. | black-tipped yellow | Eurema laeta bethesba Janson |
| zool. | blue-and-yellow tanager | Thraupis bonariensis, Thraupis bonariensis bonariensis |
| zool. | Buru yellow white-eye | Zosterops buruensis |
| biol. | cabbage yellow | Fusarium conglutinans Wollenw Snyder et Hanson |
| biol. | cabbage yellow | Fusarium oxysporum Sch. ex Fr. |
| zool. | clouded yellow | Colias croceus |
| biol. | common yellow daylily | Hemerocallis flava L. |
| biol. | common yellow swallow-tail butterfly | Papilio machaon Linnaeus |
| biol. | creeping yellow-cress | Nasturtium silvestre R. Br. |
| biol. | creeping yellow-cress | Rorippa silvestris L. Bess. |
| biol. | date palm yellow mite | Paratetranychus afrasiaticus McGregor |
| biol. | dilute yellow crotalaria | Crotalaria albida Heyne |
| biol. | dwarf yellow daylily | Hemerocallis minor Mill. |
| zool. | Eastern yellow-billed hornbill | Tockus flavirostris |
| zool. | Eastern yellow-robin | Eopsaltria australis australis |
| biol. | Florida yellow pine | Pinus palustris Mill. |
| biol. | flute-holing yellow-headed borer | Necnitocris princeps Jordan |
| biol. | Georgia yellow pine | Pinus palustris Mill. |
| zool. | golden-yellow white-eye | Zosterops nigrorum |
| zool. | Grassland yellow-finch | Sicalis luteola luteola |
| biol. | greater yellow rattle | Rhinanthus major Ehrh. |
| biol. | greenish yellow-brown hawk moth | Clanis bilineata Walker |
| biol. | greyish yellow- hind winged noctuid | Triphaena semiherbida Walker |
| biol. | Indian yellow flax | Reinwardtia trigyna Roxb. Planch. |
| biol. | Indian yellow flax | Reinwardtia Dum. |
| biol. | jacquin's yellow -flowered monkshood | Crinum longifolium Thunb. |
| zool. | Kenya yellow-rumped seedeater | Serinus reichenowi |
| biol. | large yellow croaker | Pseudosciaena crocea (Richardson) |
| biol. | large yellow dragon-fly | Tramea virginia Rambur |
| biol. | large yellow ladyslipper | Cypripedium parviflorum var. pubescens |
| biol. | large yellow underwing moth | Agrotis pronuba L. |
| biol. | larger yellow ant | Acanthomyops interjectus Mayr |
| biol. | late yellow daylily | Hemerocallis thunbergii Baker |
| biol. | lesser yellow rattle | Rhinanthus miner Ehrh. |
| biol. | long yellow daylily | Hemerocallis citrina Baroni |
| biol. | loranthus yellow butterfly | Thyca |
| biol. | loranthus yellow butterfly | Delias belisama Cramer |
| zool. | misto yellow-finch | Sicalis luteiventris |
| zool. | montane yellow-finch | Sicalis luteola bogotensis |
| biol. | mountain spotted yellow | Colias palocnoaias Fruhstorfer. |
| biol. | mulberry yellow-tail moth | Porthesia xanthocampa Dyar |
| zool. | Northern pale-yellow robin | Tregallasia capito nana |
| zool. | Northern yellow-finch | Sicalis luteola chrysops |
| zool. | Northern yellow-robin | Eopsaltria australis chrysorrhos |
| zool. | olive-yellow Myzomela | Myzomela pulchella |
| biol. | oriental clouded yellow butterfly | Coliaserate poliographus Motsch. |
| zool. | pale clouded yellow | Colias hyalae |
| zool. | pale-yellow robin | Tregellasia capito |
| biol. | pear yellow aphid | Anuraphis piricola Okamoto et Takahashi |
| biol. | pine yellow-spotted weevil | Pissodes nitidus Roelofs |
| biol. | potato yellow dwarf virus | Aureogenus vastans (Holmes) |
| biol. | potato yellow dwarf virus | Marmor vastans (Holmes) |
| biol. | rice yellow dwarf disease | Mycoplasma sp. |
| biol. | rust of yellow trefoil | Uromyces striatus Schroet. |
| zool. | Rust-and-yellow tanager | Thlypopsis ruficeps |
| biol. | Sakhalin fir yellow spotted weevil | Pissodes cembrae Motschulsky |
| zool. | Seychelles yellow white-eye | Zosterops mayottensis semiflavus |
| biol. | shinyleaf yellow horn | Xanthoceras sorbifolia Bge. |
| biol. | shrub yellow-root | Xanthorhiza simplicissima Marsh. |
| biol. | shrub yellow-root | Xanthorhiza Marsh |
| zool. | Siberian yellow-wagtail | Motacilla flava simillima |
| biol. | six-yellow-spotted leaf beetle | Galerucida lewisi Jacoby. |
| biol. | small yellow croaker | Pseudosiaena polyactis Bleeker |
| biol. | small yellow daylily | Hemerocallis minor Mill. |
| biol. | small yellow-hindwinged catocala | Catocala agitatrix Graeser |
| biol. | smaller yellow ant | Acanthomypos claviger (Roger) |
| zool. | Southern pale-yellow robin | Tregellasia capito capito |
| zool. | Southern yellow-billed hornbill | Tockus leucomelas |
| zool. | Southern yellow-rumped seedeater | Serinus atrogularis |
| biol. | spotted yellow tussock moth | Euproctis flaiva (Bremer) |
| biol. | strawberry yellow edge | Fragaria virus 1 |
| biol. | strawberry yellow edge virus | Fragaria virus 1 |
| biol. | tall yellow day-lily | Hemerocallis flava L. |
| biol. | turnip yellow mosaic virus | Brassicavirus octahedron (Roland) |
| biol. | western yellow striped armyworm | Prodenia praefica (Grote.) |
| biol. | Wilson yellow wood | Cladrastis wilsonii Takeda |
| biol. | Wilson yellow wood | Cladrastis Raf. |
| biol. | yellow aizoon saxifrage | Saxifraga aizoon var. lutea Hort. |
| biol. | yellow alfalfa | Medicago falcata L. |
| biol. | yellow alstroemeria | Alstroemeria aurantiaca D. Don. |
| zool. | yellow-and-green Lorikeet | Trichoglossus flavoviridis |
| zool. | yellow-backed oriole | Icterus chrysater |
| zool. | yellow-backed Peppershrike | Cyclarhis gujanensis virenticeps |
| gen. | yellow backed whydaw | Euplectes macrourus |
| biol. | yellow ball cactus | Notocactus graesneri sp. |
| biol. | yellow bamboo | Phyllostachys aurea Carr. ex C. Riviere |
| biol. | yellow-barkedoak | Quercus velutina |
| biol. | yellow bean mosaic virus | Phaseolus virus 2 |
| zool. | yellow-bearded bulbul | Criniger olivaceus |
| biol. | yellow bedstraw | Galium verum L. |
| zool. | yellow-bellied asity | Neodrepanis hypoxanthus |
| zool. | yellow-bellied bulbul | Alophoixus phaeocephalus |
| zool. | yellow-bellied bush-warbler | Cettia acanthizoides acanthizoides |
| zool. | yellow-bellied chat-tyrant | Silvicultrix diadema |
| zool. | yellow-bellied crombec | Sylvietta virens flaviventris |
| zool. | yellow-bellied gerygone | Gerygone chrysogaster, Gerygone chrysogaster chrysogaster |
| zool. | yellow-bellied greenlet | Hylophilus hypoxanthus flaviventris |
| zool. | yellow-bellied redstart | Myioborus miniatus verticalis |
| zool. | yellow-bellied siskin | Carduelis xanthogastra |
| zool. | yellow-bellied sunbird | Nectarinia jugularis jugularis |
| zool. | yellow-bellied warbler | Abroscopus superciliaris |
| zool. | yellow-bellied wattle-eye | Platysteira concreta, Platysteira concreta concreta |
| zool. | yellow-bellied waxbill | Estrilda quartinia, Estrilda quartinia quartinia |
| zool. | yellow-bellied waxbill | Estrilda melanotis melanotis |
| zool. | yellow-bellied weasel | Mustela Mustela kathiah |
| biol. | yellow berry | Rubus chamaemorus L. |
| zool. | yellow-bibbed Fruit-Dove | Ptilinopus solomonensis |
| zool. | yellow-bibbed Lory | Lorius chlorocercus |
| zool. | yellow-billed blue finch | Porphyrospiza caerulescens |
| zool. | yellow-billed blue-pie | Urocissa flavirostris |
| zool. | yellow-billed cacique | Amblycercus holosericeus holosericeus |
| zool. | yellow-billed egret | Mesophoyx intermedia brachyrhyncha |
| zool. | yellow-billed grosbeak | Eophona migratoria |
| zool. | yellow-billed kingfisher | Syma torotoro |
| zool. | yellow-billed kite | Milvus migrans aegyptius |
| zool. | yellow-billed lorikeet | Neopsittacus musschenbroekii |
| zool. | yellow-billed magpie | Pica nuttalli, Pica pica nuttalli |
| zool. | yellow-billed malkoha | Phaenicophaeus calyorhynchus |
| zool. | yellow-billed nuthatch | Sitta solangiae |
| zool. | yellow-billed pintail | Anas georgica,Anas georgica spinicauda |
| zool. | yellow-billed Shrike | Corvinella corvina |
| zool. | yellow-billed spoonbill | Platalea flavipes |
| zool. | yellow-billed teal | Anas flavirostris flavirostris |
| zool. | yellow-billed Tern | Sterna superciliaris |
| zool. | yellow-billed toucanet | Aulacorhynchus sulcatus calorhynchus |
| zool. | yellow-billed Turaco | Tauraco macrorhynchus |
| zool. | yellow bishop | Coliuspasser capensis |
| biol. | yellow boletus | Boletus luteus L. Fr. |
| biol. | yellow bract pachystachys | Pachystachys lutea sp. |
| zool. | yellow-breasted antpitta | Grallaria flavotincta |
| zool. | yellow-breasted Antwren | Herpsilochmus axillaris |
| zool. | yellow-breasted Apalis | Apalis flavida |
| zool. | yellow-breasted bird-of-paradise | Loboparadisea sericea |
| zool. | yellow-breasted Boatbill | Machaerirhynchus flaviventer |
| zool. | yellow-breasted bowerbird | Chlamydera lauterbachi, Chlamydera lauterbachi lauterbachi |
| zool. | yellow-breasted bush-tanager | Chlorospingus ophthalmicus flavopectus |
| zool. | yellow-breasted chat | Icteria virens |
| zool. | yellow-breasted Flowerpecker | Prionochilus maculatus |
| zool. | yellow-breasted Fruit-Dove | Ptilinopus occipitalis |
| zool. | yellow-breasted greenfinch | Carduelis spinoides |
| zool. | yellow-breasted magpie | Cissa hypoleuca |
| zool. | yellow-breasted sunbird | Nectarinia jugularis frenata |
| zool. | yellow-breasted tailorbird | Orthotomus samarensis |
| zool. | yellow-breasted tit | Parus flavipectus flavipectus |
| zool. | yellow-breasted warbler | Seicercus montis |
| zool. | yellow-browed bulbul | Iole indica |
| zool. | yellow-browed Camaroptera | Camaroptera superciliaris |
| zool. | yellow-browed Hemispingus | Hemispingus superciliaris chrysophrys |
| zool. | yellow-browed melidectes | Melidectes rufocrissalis |
| zool. | yellow-browed oxylabes | Crossleyia xanthophrys |
| zool. | yellow-browed Shrike-Vireo | Vireolanius eximius |
| zool. | yellow-browed sparrow | Ammodramus aurifrons |
| zool. | yellow-browed Tody-flycatcher | Todirostrum chrysocrotaphum |
| zool. | yellow-browed warbler | Phylloscopus inornatus inornatus |
| zool. | yellow-browed white-eye | Lophozosterops superciliaris |
| zool. | yellow-browed woodpecker | Piculus aurulentus |
| biol. | yellow brown stink-bug | Halyomorpha picus Fabricius |
| biol. | yellow brown sweet potato beetle | Laccoptera quadrimaculata bohemani Weise |
| biol. | yellow buckeye | Aesculus octandra Marsh. |
| zool. | yellow bulbul | Pycnonotus melanicterus dispar |
| biol. | yellow bumblebee | Bombus distinguendus Linnaeus |
| biol. | yellow bunny ears | Opuntia microdasys Pteiffer. |
| zool. | yellow bunting | Emberiza sulphurata |
| biol. | yellow butterfly | Eurema hecabe Linnaeus |
| biol. | yellow butterfly palm | Chrysalidocarpus lutescens H. Wendl. |
| biol. | yellow cabbage sawfly | Athalia lugens var. tibialis Cam. |
| biol. | yellow camomile | Anthemis tinctoria L. |
| zool. | yellow-capped pygmy-parrot | Micropsitta keiensis |
| biol. | yellow cedar | Chamaecyparis nootkatensis Spach. |
| biol. | yellow centaury | Chlor a L. |
| biol. | yellow centaury | Blakstonia Huds. |
| zool. | yellow Chat | Epthianura crocea |
| zool. | yellow-cheeked barbet | Tricholaema melanocephala flavibuccalis |
| zool. | yellow-cheeked Becard | Pachyramphus viridis xanthogenys |
| zool. | yellow-chevroned parakeet | Brotogeris chiriri |
| biol. | yellow Chinese poppy | Meconopsis integrifolia Maxim. Fr. |
| biol. | yellow Chinese poppy | Meconopsis Vig. |
| zool. | yellow-chinned Spinetail | Certhiaxis cinnamomea |
| zool. | yellow-chinned sunbird | Anthreptes rectirostris rectirostris |
| biol. | yellow citrus ant | Oecophylla smaragdina (Fabricius) |
| biol. | yellow citrus ant | Oecophyla smaragdina Fabricius |
| biol. | yellow cleome | Cleome lutea Hook. |
| biol. | yellow clover aphid | Therioaphis trifolii (Monell) |
| zool. | yellow-collared Chlorophonia | Chlorophonia flavirostris |
| zool. | yellow-collared Lovebird | Agapornis personatus |
| zool. | yellow-collared weaver | Ploceus melanocephalus capitalis |
| biol. | yellow columbine | Aquilegia chrysantha Gray |
| biol. | yellow cone plant | Conophytam auriflorum sp. |
| biol. | yellow cone plant | Conophytam spp. |
| biol. | yellow corydalis | Corydalis lutea DC. |
| biol. | yellow cosmos | Cosmos sulphureus Cav. |
| biol. | yellow cotton moth | Anomis flava (Fabricius) |
| biol. | yellow cotton moth | Anomis xanthydima Boisduval |
| biol. | yellow crepis | Crepis aurea sp. |
| zool. | yellow-crested cockatoo | Cacatua sulphurea |
| zool. | yellow-crested Helmetshrike | Prionops alberti |
| zool. | yellow-crested manakin | Heterocercus flavivertex |
| zool. | yellow-crested Spadebill | Platyrinchus mystaceus mystaceus |
| zool. | yellow-crowned bishop | Euplectes afer, Euplectes afer afer |
| zool. | yellow-crowned canary | Serinus canicollis flavivertex |
| zool. | yellow-crowned Elaenia | Myiopagis flavivertex |
| zool. | yellow-crowned Euphonia | Euphonia luteicapilla |
| zool. | yellow-crowned flowerpecker | Dicaeum anthonyi anthonyi |
| zool. | yellow-crowned Night-Heron | Nyctanassa violacea |
| zool. | yellow-crowned parrot | Amazona ochrocephala |
| zool. | yellow-crowned Tyrannulet | Tyrannulus elatus |
| gen. | Yellow currant fruit fly, Current fruit fly USA | Epochra canadensis |
| biol. | yellow cutworm | Agrotis segetum Schiffermüller |
| biol. | yellow cyperus | Cyperus iria L. |
| biol. | yellow cyrtanthus | Cyrtanthus ochroleucus Burch. |
| biol. | yellow disease of hyacinth | Xanthomonas hycinthi Wakk. Dowson |
| biol. | yellow dock | Rumex crispus L. |
| biol. | yellow double banksian | Rosa banksiae var. lutea Lindl. |
| biol. | yellow dwarf of onion | Allium virus 1 |
| biol. | yellow dwarf of soybean | Heterodera glycines lchinohe |
| zool. | yellow-eared honeyeater | Lichmera flavicans |
| zool. | yellow-eared parrot | Ognorhynchus icterotis |
| biol. | yellow elder | Tecoma stans Juss. |
| biol. | yellow elder | Tecoma Juss. |
| biol. | yellow elm leaf-beetle | Galerucella maculicollis Matschusky |
| biol. | yellow European lady-slipper | Cypripedium calceolus var. pubescens Corre |
| zool. | yellow-eyed babbler | Chrysomma sinense |
| zool. | yellow-eyed black-flycatcher | Melaenornis ardesiacus |
| zool. | yellow-eyed cuckooshrike | Coracina lineata |
| zool. | yellow-eyed starling | Aplonis mystacea |
| zool. | yellow-eyed thrush | Turdus nudigenis |
| biol. | yellow-eyegrass | Xyris indica L. |
| biol. | yellow-eyegrass | Xyris L. |
| biol. | yellow-eyegrass family | Xyridaceae |
| zool. | yellow-faced grassquit | Lysurus castaneiceps, (Tiaris olivacea) |
| zool. | yellow-faced honeyeater | Lichenostomus chrysops |
| zool. | yellow-faced Siskin | Carduelis yarrellii |
| zool. | yellow-faced tanager | Tangara parzudakii lunigera |
| med. | yellow fever | febris flava |
| biol. | yellow-fever mosquito | Aedes aegypti (L.) |
| biol. | yellow fever mosquito | Aedes aegypti L. |
| biol. | yellow field cress | Roripa sylvestris Bess. |
| zool. | yellow Figbird | Sphecotheres viridis flaviventris |
| biol. | yellow flag | Iris pseudocorus L. |
| biol. | yellow flax | Reinwardtia trigyna Roxb. |
| biol. | yellow flax | Reinwardtia Dumort. |
| biol. | yellow-flower incavillea | Incarvillea lutea Bur. et Franch. |
| biol. | yellow-flower sisymbrium | Hesperis lutea Maxim. |
| biol. | yellow-flowered gourd | Cucurbita pepo var. ovifera Alef. |
| biol. | yellow-flowered meadow-rue | Thalictrum flavum L. |
| biol. | yellow-flowering | anthoxantheus |
| biol. | yellow-flowering | flaviflorus |
| zool. | yellow flycatcher | Erythrocercus holochlorus |
| zool. | yellow flycatcher-warbler | Chloropeta natalensis |
| zool. | yellow fody | Foudia flavicans |
| zool. | yellow-footed alseonax | Muscicapa sethsmithi |
| zool. | yellow-footed green-pigeon | Treron phoenicoptera |
| zool. | yellow-footed gull | Larus livens |
| zool. | yellow-footed honeyguide | Melignomon eisentrauti |
| biol. | yellow foxtail | Panicum lutescens Weigel. |
| biol. | yellow foxtail | Setaria glauca Beauv. |
| biol. | yellow fringe orchid | Habenaria ciliaris R.Br. |
| biol. | yellow fritillary | Fritillaria pudica Spreng. |
| zool. | yellow-fronted parakeet | Cyanoramphus auriceps |
| biol. | yellow galium | Galium verum L. |
| biol. | yellow gentian | Gentiana lutea L. |
| biol. | yellow goats-beard | Tragopogon pratensis L. |
| biol. | yellow-granadilla | Passiflora laurifolia Lill. |
| biol. | yellow granadilla | Passiflora laurifolia Lill. |
| biol. | yellow-green agave | Agave americana var. varigata Hort. |
| zool. | yellow-green bush-tanager | Chlorospingus flavovirens |
| biol. | yellow-green century plant agave | Agave americana var. varigata Hort. |
| zool. | yellow-green finch | Pselliophorus luteoviridis |
| zool. | yellow-green greenlet | Hylophilus flavipes viridiflavus |
| zool. | yellow-green Grosbeak | Caryothraustes canadensis |
| zool. | yellow-green Tyrannulet | Phylloscartes flavovirens |
| zool. | yellow-green vireo | Vireo flavoviridis |
| biol. | yellow-hairy actinidia | Actinidia fulvicoma Hance |
| zool. | yellow-headed Caracara | Milvago chimachima |
| biol. | yellow-headed cutworm | Apamea amputatrix Fitch. |
| biol. | yellow-headed fireworm | Acleris minuta (Robinson) |
| zool. | yellow-headed Leafbird | Chloropsis cochinchinensis cochinchinensis |
| biol. | yellow-headed leafhopper | Carneocephala flaviceps (Riley) |
| biol. | yellow headed moth borer | Diatraea centrella Möschler |
| zool. | yellow-headed parrot | Amazona oratrix |
| zool. | yellow-headed wagtail | Motacilla flava lutea |
| zool. | yellow honeyeater | Lichenostomus flavus |
| biol. | yellow honeysuckle | Lonicera flava Sims. |
| biol. | yellow-horn | Xanthocera sorbifolia Bunge |
| biol. | yellow-horn | Xanthocera Bunge |
| biol. | yellow hornpoppy | Glaucium flavum Grantz |
| biol. | yellow Indian-grass | Sorghastrum nutans L. |
| biol. | yellow iris | Iris pseudocorus L. |
| biol. | yellow jacket | Vespidae |
| biol. | yellow-jacket | Macrovespa mandarina Smith |
| biol. | yellow jackets | Vespidae (复) |
| biol. | yellow Japanese scale | Aonidiella citrinus Coq. |
| biol. | yellow kangaroo-paw | Anigozanthus viridis sp. |
| zool. | yellow-knobbed Curassow | Crax daubentoni |
| zool. | yellow-legged buttonquail | Turnix tanki |
| zool. | yellow-legged Flyrobin | Microeca griseoceps |
| zool. | yellow-legged gull | Larus cachinnans cachinnans |
| biol. | yellow-legged lema | Lema tristis Herbst. |
| zool. | yellow-legged malimbe | Malimbus flavipes |
| zool. | yellow-legged marmoset | Callithrix chrysoleucos |
| zool. | yellow-legged Tinamou | Crypturellus noctivagus |
| biol. | yellow lily-of-the-incas | Alstroemeria L. |
| biol. | yellow lily-of-the-incas | Alstroemeria aurantiaca D. Don |
| biol. | yellow locust | Robinia pseudoacacia L. |
| biol. | yellow locust | Melanoplus differentialis (Thomas) |
| zool. | yellow-lored parrot | Amazona xantholora |
| zool. | yellow-lored tanager | Chlorothraupis carmioli frenata |
| zool. | yellow-lored Tody-flycatcher | Todirostrum poliocephalum |
| biol. | yellow lupine | Lupinus luteus L. |
| med. | yellow macula | macula flava retinae |
| med. | yellow macula | macula retinae |
| med. | yellow macula | macula lutea retinae |
| zool. | yellow-mantled widowbird | Euplectes macrourus macrourus |
| biol. | yellow-margined leaf beetle | Microtheca ochroloma Stál |
| biol. | yellow marguerite | Anthemis tinctoria L. |
| biol. | yellow-marked blue leaf beetle | Dactylispa angulosa Solsky |
| med. | yellow marrow | medulla ossium flava |
| biol. | yellow mealworm | Tenebrio molitor Linnaeus |
| biol. | yellow mignonette | Reseda lutea L. |
| biol. | yellow mite | Hemitarsomus latus Banks |
| biol. | yellow mombin | Spondias mombin axillaris Burbt et Flill |
| zool. | yellow mongoose | Herpestes Galerella ochracea |
| biol. | yellow moraea | Moraea bicolor Spae |
| biol. | yellow mosaic of barley | Barley yellow mosaic virus |
| biol. | yellow mosaic of bean | Phaseolus virus 2 |
| biol. | yellow mosaic of wheat | Wheat yellow mosaic virus |
| biol. | yellow mulberry longicorn | Oberea fuscipennis Chevrolat |
| biol. | yellow muscardine | Isaria farinosa |
| zool. | yellow-naped parrot | Amazona auropalliata |
| biol. | yellow-necked caterpillar | Datana ministra Drury |
| zool. | yellow-necked field mouse | Apodemus flavicollis |
| zool. | yellow-necked Spurfowl | Francolinus leucoscepus |
| biol. | yellow oak | Quercus velutina Lam. |
| biol. | yellow oat-grass | Trisetum flavescens L. P. B. |
| biol. | yellow oleander | Thevetia peruviana Pers. K. Schum. |
| biol. | yellow oleander | Thevetia Adans. |
| biol. | yellow ox-eye daisy | Chrysanthemum segtum L. |
| biol. | yellow oxeye-daisy | Chrysanthemum segetum L. |
| biol. | yellow partilla | Menispermum canadense L. |
| biol. | yellow-patched swallowtail | Papilio helenus nicconicoleus Butler |
| zool. | yellow penduline-tit | Anthoscopus parvulus |
| biol. | yellow pholita | Pholita Flammans Quel. |
| gen. | yellow pickerel | Stizostedion vitreum vitreum |
| gen. | yellow pike | Stizostedion vitreum vitreum |
| biol. | yellow plant bug | Tygus kalmi Linne |
| zool. | yellow-plumed honeyeater | Lichenostomus ornatus |
| zool. | yellow pocket gopher | Cratogeomys castanops |
| zool. | yellow pocket gophers | Cratogeomys |
| biol. | yellow pond-lily | Nuphar pumilum Hoffm.DC. |
| biol. | yellow pond-lily | Nuphar pumilum Hoffm. DC. |
| biol. | yellow pond-lily | Nuphar Sm. |
| biol. | yellow poplar | Liriodendron tulipifera L. |
| med. | yellow precipitate | hydrargyrum oxydatumflavum |
| biol. | yellow puccoon | Hydrastis eanadensis L. |
| biol. | yellow pygmy waterlily | Nymphaea tetragona var. helvola Hort. |
| biol. | yellow rape | Brassica campestris L. |
| biol. | yellow raspberry cap | Rubus elliptica Smith |
| biol. | yellow rice borer | Tryporyza |
| biol. | yellow rice borer | Scirpophaga incertulas (Walker) |
| biol. | yellow rice bug | Euryaspis flavescens Distant |
| biol. | yellow rice leaf miner | Oscinis oryzella (Matsumura) |
| zool. | yellow robin | Eopsaltria australis |
| biol. | yellow rocket | Barbarea vulgaris R.Br. |
| biol. | yellow root | Zanthorrhiza Marsh. |
| biol. | yellow root | Xanthorrhiza L'Herit. |
| biol. | yellow rose aphid | Acyrthosiphon porosum Sanderson |
| zool. | yellow Rosella | Platycercus flaveolus |
| zool. | yellow-rumped Antwren | Terenura sharpei |
| zool. | yellow-rumped cacique | Cacicus cela cela |
| zool. | yellow-rumped Eremomela | Eremomela gregalis |
| zool. | yellow-rumped Flowerpecker | Prionochilus xanthopygius |
| zool. | yellow-rumped Grosbeak | Pheucticus aureoventris uropygialis |
| zool. | yellow-rumped honeyguide | Indicator xanthonotus |
| zool. | yellow-rumped pardalote | Pardalotus punctatus xanthopygos |
| zool. | yellow-rumped Siskin | Carduelis uropygialis |
| zool. | yellow-rumped tanager | Ramphocelus flammigerus icteronotus |
| zool. | yellow-rumped tinkerbird | Pogoniulus bilineatus |
| biol. | yellow rust of cereals | Puccinia striiformis West. |
| biol. | yellow rust of wheat | Puccinia striiformis West. |
| biol. | yellow sage | Verbena canadensis Britt. |
| biol. | yellow sage | Lantana camara L. |
| biol. | yellow sage | Lantana L. |
| biol. | yellow sandalwood | Santalum album L. |
| biol. | yellow scale | Chrysomphalus aurantii var. citrinus (Coq.) |
| biol. | yellow scale | Aspidiotus citrinus Coq. |
| biol. | yellow scale | Aonidiella citrina (Coq.) |
| gen. | Yellow scale | Aonidiella citrina |
| zool. | yellow-scarfed tanager | Iridosornis reinhardti |
| biol. | yellow seven-spotted lady beetle | Coccinella septempunctata bruckii Milsant |
| zool. | yellow-shafted flicker | Colaptes auratus auratus |
| biol. | yellow-shoulder bug | Nezara viridula torquata Fabricius |
| zool. | yellow-shouldered bats | Sturnirinae |
| zool. | yellow-shouldered Grassquit | Loxipasser anoxanthus |
| zool. | yellow-shouldered Grosbeak | Caryothraustes humeralis |
| zool. | yellow-shouldered oriole | Icterus cayanensis pyrrhopterus |
| zool. | yellow-shouldered parrot | Amazona barbadensis |
| zool. | yellow-shouldered sparrow | Arremon taciturnus axillaris |
| zool. | yellow-shouldered widowbird | Euplectes macrourus, Euplectes macrourus macrocercus |
| zool. | yellow-sided flowerpecker | Dicaeum aureolimbatum |
| biol. | yellow skunk-cabbage | Lysichiton kamtschatense Schott. |
| biol. | yellow spider mite | Eotetranychus carpini borealis (Ewing) |
| biol. | yellow spider-flower | Cleome lutea Hook. |
| biol. | yellow-spined bamboo locust | Ceracris kiangsu Tsai |
| biol. | yellow spines haageocereus | Haageocereus acranthus sp. |
| biol. | yellow spines haageocereus | Haageocereus spp. |
| med. | yellow spot | macula lutea retinae |
| med. | yellow spot | macula lutea |
| zool. | yellow-spotted dassie | Helerohyrax brucei |
| biol. | yellow-spotted longicorn beetle | Psacothea hilaris (Pascoe) |
| biol. | yellow-spotted small noctuid | Erastria trabealis (Scopoli) |
| zool. | yellow-streaked Lory | Chalcopsitta sintillata |
| biol. | yellow-striped armyworm | Spodoptera ornithogalli (Guenee) |
| biol. | yellow stunt of oats | Avena virus 1 |
| biol. | yellow sugarcane aphid | Sipha flava (Forbes) |
| biol. | yellow swallowtail butterfly | Papilio machaon Linnaeus |
| biol. | yellow sweet clover | Melilotus arvensis Wallr. |
| biol. | yellow sweet clover | Melilotus officinalisL. Desr. |
| biol. | yellow sweetclover | Melilotus officinalis L. Pall. |
| biol. | yellow-tail | Sriola aureovittata Temminck et Schlegel |
| biol. | yellow tail moth | Nygmia phaeorrhoea Donov. |
| zool. | yellow-tailed black-cockatoo | Calyptorhynchus funereus, Calyptorhynchus funereus funereus |
| zool. | yellow-tailed shad | Brevoortia |
| zool. | yellow-thighed finch | Pselliophorus tibialis |
| biol. | yellow thorax termite | Reticulitermes flavipes (Kollar) |
| zool. | yellow-throated Apalis | Apalis thoracica flavigularis |
| zool. | yellow-throated bunting | Emberiza elegans, Emberiza elegansea |
| zool. | yellow-throated bush-tanager | Chlorospingus flavigularis, Chlorospingus flavigularis flavigularis |
| zool. | yellow-throated cuckoo | Chrysococcyx flavigularis |
| zool. | yellow-throated Euphonia | Euphonia hirundinacea |
| zool. | yellow-throated flycatcher | Conopias parva |
| zool. | yellow-throated greenbul | Chlorocichla flavicollis |
| zool. | yellow-throated hanging-parrot | Loriculus pusillus |
| zool. | yellow-throated honeyeater | Lichenostomus flavicollis |
| zool. | yellow-throated Laughingthrush | Garrulax galbanus galbanus |
| zool. | yellow-throated Leafbird | Chloropsis palawanensis |
| zool. | yellow-throated miner | Manorina flavigula, Manorina flavigula flavigula |
| zool. | yellow-throated Nicator | Nicator vireo |
| zool. | yellow-throated Scrubwren | Sericornis citreogularis |
| zool. | yellow-throated tanager | Iridosornis analis |
| zool. | yellow-throated tinkerbird | Pogoniulus subsulphureus |
| zool. | yellow-throated woodland-warbler | Phylloscopus ruficapillus |
| zool. | yellow-tinted black-cockatoo | Calyptorhynchus funereus xanthonotus |
| zool. | yellow-tinted honeyeater | Lichenostomus flavescens |
| zool. | yellow-tinted imperial-pigeon | Ducula subflavescens |
| biol. | yellow tip ped pyralid | Scirpophaga auriflua Zeller |
| biol. | yellow tip ped pyralid | Scirpophaga nivella Fabricius |
| zool. | yellow-tipped antbird | Hypocnemis cantator flavescens |
| biol. | yellow-tipped bug | Hygia opaca Uhler |
| biol. | yellow-tipped lema | Lema lewisi Baly |
| biol. | yellow-tipped melyrid | Malachius xantholoma Kirsenwetter |
| zool. | yellow-tipped pardalote | Pardalotus striatus striatus |
| biol. | yellow-tipped prominent | Phalera assimilis (Bremer et Gray) |
| biol. | yellow-tipped pyralid | Scirpophaga nivella Fabricius |
| biol. | yellow-tipped white | Euchlora scolymus Butler |
| biol. | yellow toadflax | Linaria Mill. |
| biol. | yellow toadflax | Linaria vulgaris Mill. |
| biol. | yellow toadlily | Tricyrtis nana Yatabe. |
| biol. | yellow trumpet | Tecoma stans Juss. |
| biol. | yellow trumpet | Tecoma Juss. |
| zool. | yellow-tufted dacnis | Dacnis lineata egregia |
| zool. | yellow-tufted honeyeater | Lichenostomus melanops melanops |
| zool. | yellow-tufted woodpecker | Melanerpes cruentatus, Centurus cruentatus |
| zool. | yellow Tyrannulet | Capsiempis flaveola |
| biol. | yellow unicorn-plant | Ibicella lutea Van Eseltine |
| zool. | yellow-vented Eremomela | Eremomela flavicrissalis |
| zool. | yellow-vented green-pigeon | Treron seimundi |
| zool. | yellow-vented myzomela | Myzomela eichhorni |
| zool. | yellow-vented warbler | Phylloscopus cantator |
| biol. | yellow vetchling | Lathyrus pratensis L. |
| zool. | yellow wagtail | Motacilla flava flavissima |
| zool. | yellow warbler | Dendroica petechia, Dendroica petechia aestiva |
| biol. | yellow water lily | Nuphar pumilum Hoffm. DC. |
| zool. | yellow-wattled Lapwing | Vanellus malabaricus |
| zool. | yellow Weebill | Smicrornis brevirostris flavescens |
| biol. | yellow wheat blossom midge | Contarinia tritici (Kirby) |
| biol. | yellow wheat blossom midge | Contarinia tritici Kirby |
| zool. | yellow-whiskered bush-tanager | Chlorospingus parvirostris |
| biol. | yellow woods | Cladrastis lutea Michx. |
| biol. | yellow wood-wasp | Sirex gigas |
| biol. | yellow woollybear | Diacrisia virginica (Fabricius) |
| biol. | yellow wort | Chlor a L. |
| biol. | yellow wort | Blakstonia Huds. |
