| Ageratina popayanensis | Ageratina potosina | Ageratina pringlei |
| Ageratina proba | Ageratina prunellifolia | Ageratina prunifolia |
| Ageratina pseudochilca | Ageratina psilodora | Ageratina queretaroana |
| Ageratina ramireziorum | Ageratina ramonensis | Ageratina resinifera |
| Ageratina resiniflua | Ageratina reticulifera | Ageratina rhodopappa |
| Ageratina rhodopoda | Ageratina rhomboidea | Ageratina rhypodes |
| Ageratina rhytidodes | Ageratina riparia | Ageratina riskindii |
| Ageratina robinsoniana | Ageratina roraimensis | Ageratina rothrockii |
| Ageratina rubricaulis | Ageratina rupicola | Ageratina salicifolia |
| Ageratina saltillensis | Ageratina salvadorensis | Ageratina sandersii |
| Ageratina saxorum | Ageratina scopulorum | Ageratina scorodonioides |
| Ageratina seleri | Ageratina shastensis | Ageratina simulans |
| Ageratina sodiroi | Ageratina sotarensis | Ageratina sousae |
| Ageratina standleyi | Ageratina sternbergiana | Ageratina stictophylla |
| Ageratina stricta | Ageratina subferruginea | Ageratina subglabra |
| Ageratina subintegra | Ageratina sundbergii | Ageratina tambillensis |
| Ageratina tarmensis | Ageratina theaefolia | Ageratina thyrsiflora |
| Ageratina tinifolia | Ageratina tomentella | Ageratina tonduzii |
| Ageratina triangulata | Ageratina triniona | Ageratina tristis |
| Ageratina urbanii | Ageratina vacciniaefolia | Ageratina valerioi |
| Ageratina vallincola | Ageratina venulosa | Ageratina vernalis |
| Ageratina vernicosa | Ageratina viburnoides | Ageratina viejoana |
| Ageratina viscosa | Ageratina viscosissima | Ageratina warnockii |
| Ageratina whitei | Ageratina wrightii | Ageratina wurdackii |
| Ageratina yecorana | Ageratina zapalinama | Ageratina zinniifolia |
| Ageratina zunilana | Ageratinastrum | Ageratinastrum katangense |
| Ageratinastrum lejolyanum | Ageratinastrum palustre | Ageratinastrum polyphyllum |
| Ageratum | Ageratum albidum | Ageratum anisochroma |
| Ageratum asclepiadea | Ageratum ballotifolium | Ageratum brachystephanum |
| Ageratum candidum | Ageratum chiriquense | Ageratum chortianum |
| Ageratum conyzoides | Ageratum cordatum | Ageratum corymbosum |
| Ageratum echioides | Ageratum ellipticum | Ageratum fastigiatum |
| Ageratum gaumeri | Ageratum glechonophylla | Ageratum hondurense |
| Ageratum houstonianum | Ageratum iltisii | Ageratum isocarphoides |
| Ageratum lavenia | Ageratum lundellii | Ageratum maritimum |
| Ageratum matricarioides | Ageratum mexicanum | Ageratum microcephalum |
| Ageratum micropappum | Ageratum molinae | Ageratum munaense |
| Ageratum muticum | Ageratum myriadenium | Ageratum oerstedii |
| Ageratum oliveri | Ageratum paleaceum | Ageratum peckii |
| Ageratum petiolatum | Ageratum platylepis | Ageratum rhypodes |
| Ageratum riparium | Ageratum salvanaturae | Ageratum scorpioideum |
| Ageratum solisii | Ageratum stachyofolium | Ageratum standleyi |
| Ageratum tehuacanum | Ageratum tomentosum | Agerø |
| Agersø | Agesilaos II | Agesilaus ii |
| Agesilaus II | Agethorst | Agetocera |
| Agetocera abdominalis | Agetocera biclava | Agetocera birmanica |
| Agetocera chapana | Agetocera cyanipennis | Agetocera deformicornis |
| Agetocera discedens | Agetocera duporti | Agetocera femoralis |
| Agetocera filicornis | Agetocera flavivientris | Agetocera hopei |
| Agetocera lobicornis | Agetocera manipuria | Agetocera mirabilis |
| Agetocera nigripennis | Agetocera orientalis | Agetocera quadraticollis |
| Agetocera similis | Agetocera sokolovi | Agetocera taiwana |
| Ageville | AGEVP | Agey |
| Agga, Bhatkal | Aggadalu, Belur | Aggeraspis |
| Aggiosaurus | Aggius | Aggressive Inline |
| Aggsbach | Aggtelek | Aggunda, Arsikere |
| Aggustiana | Agha Mohammad Khan | Agha Mohammad Khan Qajar |
| Agha Muhammad Khan | Agha Muhammad Khan Qajar | Aghalaya Kaval, Krishnarajpet |
| Aghalaya, Krishnarajpet | Aghanashini, Kumta | Aghavnadzor, Kotayk |
| Aghavnadzor, Vayots Dzor | Aghavnatun, Armavir | Aghavnavank, Tavush |
| Aghbal | Aghbalou | Aghberk, Gegharkunik |
| Aghdam (quận) | Aghdash (quận) | Aghdzk, Aragatsotn |
| Aghia | Aghia Paraskevi | Aghia Varvara |
| Aghin, Shirak | Aghio Oros | Aghione |
| Aghios Dimitrios | Aghios Nikolaos | Aghios Vassilios |
| Aghireșu | Aghiresu | Aghitu, Syunik |
| Aghjabedi (quận) | Aghlal | Aghni-Goughrane |
| Aghnjadzor | Aghnjadzor, Vayots Dzor | Aghori |
| Aghrib | Aghstafa (quận) | Aghsu (quận) |
| Aghvani, Syunik | Aghvorik, Shirak | Agia |
| Agia (Geometridae) | Agia Varvara | Agianthus |
| Agianthus jacobaeus | Agicuphocera nigra | Agidel |
| Agidel' | Agiez | Agigea |
| Agilaus infuscatus | Agilaus kapitensis | Agilaus mirabilis |
| Agilaus pectoralis | Agilaus pedestris | AGILE (vệ tinh) |
| Agile, Hassan | Agilisaurus | Agincourt, Meurthe-et-Moselle |
| Aginna | Aginna circumscripta | Aginsky (huyện) |
| Agioi Anargyroi-Kamatero | Agiortia cicatricata | Agiortia pedicellata |
| Agiortia pleiosperma | Agios Efstratios | Agis IV |
| Agistri | Agkistrodon bilineatus | Agkistrodon contortrix |
| Agkistrodon piscivorus | Agkistrodon taylori | Agkonia miranda |
| Agkonia ovifera | Agkonia pega | Agladrillia |
| Agladrillia anadelgado | Agladrillia badia | Agladrillia benjamini |
| Agladrillia flucticulus | Agladrillia fuegiensis | Agladrillia gorgonensis |
| Agladrillia macella | Agladrillia piscorum | Agladrillia plicatella |
| Agladrillia pudica | Agladrillia ukuminxa | Aglae caerulea |
| Aglaeactis | Aglaeactis aliciae | Aglaeactis castelnaudii |
| Aglaeactis castelnaudii castelnaudii | Aglaeactis castelnaudii regalis | Aglaeactis cupripennis |
| Aglaeactis cupripennis caumatonota | Aglaeactis cupripennis cupripennis | Aglaeactis pamela |
| Aglaia | Aglaia agglomerata | Aglaia aherniana |
| Aglaia amplexicaulis | Aglaia angustifolia | Aglaia apiocarpa |
| Aglaia archboldiana | Aglaia archiboldiana | Aglaia argentea |
| Aglaia aspera | Aglaia australiensis | Aglaia barbanthera |
| Aglaia basiphylla | Aglaia beccarii | Aglaia bourdillonii |
| Aglaia brassii | Aglaia brownii | Aglaia bullata |
| Aglaia ceramica | Aglaia chittagonga | Aglaia cinnamomea |
| Aglaia conferta | Aglaia cooperae | Aglaia coriacea |
| Aglaia costata | Aglaia crassinervia | Aglaia cremea |
| Aglaia cucullata | Aglaia cumingiana | Aglaia cuspidata |
| Aglaia dasyclada | Aglaia densisquama | Aglaia densitricha |
