Home > Free Information > Orchid General Listing
At this point, there are approximately 1725 recognized orchid genera. They are listed below, with the appropriate abbreviation, and in the case of man-made genera (hybrids), their makeup.
| Acacallis | Acclls | Natural |
| Acampe | Acp | Natural |
| Acanthephippium | Actphm | Natural |
| Acimbreea | Acba | Acn x Emb |
| Acineta | Acn | Natural |
| Acostaea | Acsta | Natural |
| Acrolophia | Acrlph | Natural |
| Ada | Ada | Natural |
| Adacidium | Adcm | Ada x Onc |
| Adaglossum | Adgm | Ada x Odm |
| Adapasia | Adps | Ada x Asp |
| Adenoncos | Adnncs | Natural |
| Adioda | Ado | Ada x Cda |
| Aerangaeris | Arg | Aer x Rgs |
| Aerangis | Aergs | Natural |
| Aeranthes | Aerth | Natural |
| Aerasconetia | Aescta | Aer x Asctm x Neof |
| Aeridachnis | Aerdns | Aer x Arach |
| Aerides | Aer | Natural |
| Aeridisia | Aersa | Aer x Lsa |
| Aeriditis | Aerdts | Aer x Dor |
| Aeridocentrum | Aerctm | Aer x Asctm |
| Aeridochilus | Aerchs | Aer x Sarco |
| Aeridofinetia | Aerf | Aer x Neof |
| Aeridoglossum | Aergm | Aer x Ascgm |
| Aeridoglottis | Aegts | Aer x Trgl |
| Aeridopsis | Aerps | Aer x Phal |
| Aeridovanda | Aerdv | Aer x V |
| Aeridovanisia | Aervsa | Aer x Lsa x V |
| Agananthes | Agths | Agn x Cnths |
| Aganax | Agx | Agn x Clx |
| Aganisia | Agn | Natural |
| Agasepalum | Agsp | Agn x Zspm |
| Aitkenara | Aitk | Otst x Z x Zspm |
| Alamania | Almn | Natural |
| Alangreatwoodara | Agwa | Clx x Prom x Z |
| Alexanderara | Alxra | Brs x Cda x Odm x Onc |
| Aliceara | Alcra | Brs x Milt x Onc |
| Allenara | Alna | C x Diacm x Epi x L |
| Alphonsoara | Alph | Arach x Asctm x V x Vdps |
| Altensteinia | Altstn | Natural |
| Ambostoma | Amb | Natural |
| Amesiella | Amsll | Natural |
| Amitostigma | Amtstg | Natural |
| Anacamptis | Ancmpt | Natural |
| Ancistrochilus | Ancstrc | Natural |
| Andrewara | Andw | Arach x Ren x Trgl x V |
| Angraecentrum | Angctm | Angcm x Asctm |
| Angraecopsis | Angcps | Natural |
| Angraecostylis | Angsts | Angcm x Rhy |
| Angraecum | Angcm | Natural |
| Angraecyrtanthes | Ancyth | Aerth x Angcm x Cyrtcs |
| Angraeorchis | Angchs | Angcm x Cyrtcs |
| Angrangis | Angrs | Aergs x Angcm |
| Angranthellea | Angtla | Aerth x Angcm x Jum |
| Angranthes | Angth | Aerth x Angcm |
| Angreoniella | Angnla | Angcm x Oenla |
| Anguloa | Ang | Natural |
| Angulocaste | Angcst | Ang x Lyc |
| Anoectochilus | Anct | Natural |
| Anoectomaria | Anctma | Anct x Haem |
| Ansellia | Aslla | Natural |
| Ansieium | Asdm | Aslla x Cym |
| Appendicula | Appndc | Natural |
| Aracampe | Arcp | Acp x Arach |
| Arachnanthe | Archnn | Natural |
| Arachnis | Arach | Natural |
| Arachnocentron | Act | Arach x Clctn |
| Arachnoglossum | Arngm | Arach x Ascgm |
| Arachnoglottis | Arngl | Arach x Trgl |
| Arachnopsis | Arnps | Arach x Phal |
| Arachnostylis | Arnst | Arach x Rhy |
| Aranda | Aranda | Arach x V |
| Aranthera | Arnth | Arach x Ren |
| Arethusa | Aret | Natural |
| Arizara | Ariz | C x Dga x Epi |
| Armodorum | Armdrm | Natural |
| Arpophyllum | Arpphy | Natural |
| Artorima | Artrm | Natural |
| Ascandopsis | Ascdps | Asctm x Vdps |
| Ascocenda | Ascda | Asctm x V |
| Ascocentrum | Asctm | Natural |
| Ascocleinetia | Ascln | Asctm x Clctn x Neof |
| Ascofinetia | Ascf | Asctm x Neof |
| Ascogastisia | Agsta | Asctm x Gchls x Lsa |
| Ascoglossum | Ascgm | Natural |
| Ascoglottis | Asgts | Asctm x Trgl |
| Asconopsis | Ascps | Asctm x Phal |
| Ascorachnis | Ascns | Arach x Asctm |
| Ascovandoritis | Asvts | Asctm x Dor x V |
| Aspasia | Asp | Natural |
| Aspasium | Aspsm | Asp x Onc |
| Aspodia | Asid | Asp x Cda |
| Aspodonia | Aspd | Asp x Milt x Odm |
| Aspoglossum | Aspgm | Asp x Odm |
| Aulosepalum | Alsplm | Natural |
| Ayubara | Ayb | Aer x Arach x Ascgm |
| Bakerara | Bak | Brs x Milt x Odm x Onc |
| Balaguerara | Blga | Bro x Epi x Lps x Ttma |
| Baldwinara | Bdwna | Asp x Cda x Odm x Onc |
| Banfieldara | Bnfd | Ada x Brs x Odm |
| Bapticidium | Btcm | Bapt x Onc |
| Baptirettia | Btta | Bapt x Comp |
| Baptistoglossum | Bpgm | Bapt x Odm |
| Baptistonia | Bapt | Natural |
| Barangis | Brgs | Aergs x Brmb |
| Barbosaara | Bbra | Cda x Gom x Odm x Onc |
| Barbosella | Bar | Natural Genus |
| Bardendrum | Bard | Bark x Epi |
| Barkeria | Bark | Natural |
| Barkonitis | Bknts | Bark x S |
| Barombia | Brmb | Natural |
| Batemannia | Btmna | Natural |
| Bateostylis | Btst | Btmna x Otst |
| Baumannara | Bmnra | Comp x Odm x Onc |
| Beadlea | Bdlea | Natural |
| Beallara | Bllra | Brs x Cda x Milt x Odm |
| Beardara | Bdra | Asctm x Dor x Phal |
| Beclardia | Becl | Natural |
| Benzingia | Ben | Natural Genus |
| Bifranisia | Bfsa | Agn x Bif |
| Bifrenaria | Bif | Natural |
| Bifrenidium | Bifdm | Bif x Zwr |
| Bifreniella | Bifla | Bif x Rud |
| Biltonara | Bilt | Ada x Cda x Milt x Odm |
| Binotia | Bntia | Natural |
| Bishopara | Bish | Bro x C x S |
| Blackara | Blkr | Asp x Cda x Milt x Odm |
| Blephariglottis | Blphrg | Natural |
| Bletia | Bletia | Natural |
| Bletiaglottis | Blgts | Bletia x Spa |
| Bletilla | Ble | Natural |
| Bloomara | Blma | Bro x Lps x Ttma |
| Bogardara | Bgd | Asctm x Phal x V |
| Bokchoonara | Bkch | Arach x Asctm x Phal x V |
| Bollea | Bol | Natural |
| Bolleanthes | Blth | Bol x Cnths |
| Bollopetalum | Blptm | Bol x Z |
| Bolusiella | Blsll | Natural |
| Bonatea | Bnt | Natural Genus |
| Bonniera | Bnnra | Natural |
| Bothriochilus | Bthrch | Natural |
| Bovornara | Bov | Arach x Asctm x Rhy x V |
| Brachionidium | Brchnd | Natural |
| Brachtia | Brcht | Natural |
| Brachycorythis | Brchcr | Natural |
| Bradeara | Brade | Comp x Gom x Rdza |
| Brapacidium | Bpc | Asp x Brs x Onc |
| Brapasia | Brap | Asp x Brs |
| Brassada | Brsa | Ada x Brs |
| Brassavola | B | Natural |
| Brassia | Brs | Natural |
| Brassidium | Brsdm | Brs x Onc |
| Brassioda | Broda | Brs x Cda |
| Brassocattleya | Bc | B x C |
| Brassochilus | Brchs | Brs x Lchs |
| Brassodiacrium | Bdia | B x Diacm |
| Brassoepidendrum | Bepi | B x Epi |
| Brassoepilaelia | Bpl | B x Epi x L |
| Brassokeria | Brsk | Bark x B |
| Brassolaelia | Bl | B x L |
| Brassolaeliocattleya | Blc | B x C x L |
| Brassomicra | Bmc | B x Ttma |
| Brassosophronitis | Bnts | B x S |
| Brassotonia | Bstna | B x Bro |
| Brilliandeara | Brlda | Asp x Brs x Cda x Milt x Odm x Onc |
| Bromheadia | Brom | Natural |
| Broughtonia | Bro | Natural |
| Brownara | Bwna | Bro x C x Diacm |
| Brummittara | Brum | Comp x Odm x Rdza |
| Buiara | Bui | Bro x C x Epi x L x S |
| Bulbophyllum | Bulb | Natural |
| Burkhardtara | Bktra | Lchs x Odm x Onc x Rdza |
| Burkillara | Burk | Aer x Arach x V |
| Burrageara | Burr | Cda x Milt x Odm x Onc |
| Cadetia | Cad | Natural Genus |
| Caladenia | Calda | Natural |
| Calanthe | Cal | Natural |
| Calassodia | Calsd | Calda x Gloss |
| Caloarethusa | Clts | Aret x Cpg |
| Calochilus | Clchs | Natural |
| Calomitra | Cmta | Clchs x Thel |
| Calopogon | Cpg | Natural |
| Calyptrochilum | Clypt | Natural |
| Campbellara | Cmpba | Odm x Onc x Rdza |
| Campylocentrum | Cmplcn | Natural |
| Capanemia | Cap | Natural Genus |
| Carmichaelara | Crml | B x Bro x L |
| Carpenterara | Cptra | Bapt x Odm x Onc |
| Carterara | Ctra | Aer x Ren x Vdps |
| Casoara | Csr | B x Bro x Lps |
| Catamodes | Ctmds | Ctsm x Morm |
| Catanoches | Ctnchs | Ctsm x Cyc |
| Catasandra | Ctsda | Ctsm x Gal |
| Catasetum | Ctsm | Natural |
| Cattkeria | Cka | Bark x C |
| Cattlassia | Cas | Brs x C |
| Cattleya | C | Natural |
| Cattleyopsis | Ctps | Natural |
| Cattleyopsisgoa | Ctpga | Ctps x Dga |
| Cattleyopsistonia | Ctpsta | Bro x Ctps |
| Cattleytonia | Ctna | Bro x C |
| Cattotes | Ctts | C x Lpt |
| Caularthron | Clrthr | Natural |
| Cephalanthera | Ceph | Natural |
| Cephalopactis | Cpts | Ceph x Epcts |
| Ceratocentron | Crtn | Natural |
| Ceratochilus | Crtchl | Natural |
| Ceratograecum | Crgm | Angcm x Crtn |
| Ceratostylis | Crtstl | Natural |
| Chamaeangis | Chmngs | Natural |
| Chamelophyton | Chmph | Natural |
| Charlesworthara | Cha | Cda x Milt x Onc |
| Charlieara | Charl | Rhy x V x Vdps |
| Chaubardianthes | Chbth | Chbrdl x Cnths |
| Chaubardiella | Chbrdl | Natural |
| Chelonistele | Chlnst | Natural |
| Chewara | Chew | Aer x Ren x Rhy |
| Chilocentrum | Chctm | Asctm x Chsch |
| Chiloglottis | Chlglt | Natural |
| Chiloschista | Chsch | Natural |
| Chinheongara | Chi | Asctm x Phal x Rhy |
| Chondranthes | Cdths | Chdrh x Cnths |
| Chondrobollea | Chdb | Bol x Chdrh |
| Chondrorhyncha | Chdrh | Natural |
| Christensonia | Chrstn | Natural |
| Christieara | Chtra | Aer x Asctm x V |
| Chuanyenara | Chnya | Arach x Ren x Rhy |
| Chuatianara | Chtn | Neof x Ren x Rhy x V |
| Chyletia | Chlt | Natural |
| Chysis | Chy | Natural |
| Chytroglossa | Chyt | Natural Genus |
| Cirrhaea | Cra | Natural |
| Cirrhopea | Chpa | Cra x Stan |
| Cirrhopetalum | Cirr | Natural |
| Cirrhophyllum | Crphm | Bulb x Cirr |
| Cischostalix | Cstx | Cisch x Sgmx |
| Cischweinfia | Cisch | Natural |
| Cischweintia | Cisch | Natural |
| Clarkeara | Clka | B x C x Diacm x L x S |
| Cleisocalpa | Clclp | Clctn x Pmcpa |
| Cleisocentron | Clctn | Natural |
| Cleisodes | Clsd | Aer x Clctn |
| Cleisofinetia | Clfta | Clctn x Neof |
| Cleisomeria | Clsmr | Natural |
| Cleisonopsis | Clnps | Clctn x Phal |
| Cleisopera | Clspa | Cleis x Micr |
| Cleisoquetia | Clq | Clctn x Rbq |
| Cleisostoma | Cleis | Natural |
| Cleisostylis | Clsty | Clctn x Rhy |
| Cleisothera | Cltha | Cleis x Pthia |
| Clowesia | Clow | Natural |
| Cochella | Chla | Cnths x Mdcla |
| Cochleanthes | Cnths | Natural |
| Cochlecaste | Cccst | Cnths x Lyc |
| Cochlenia | Cclna | Snths x Stenia |
| Cochleottia | Colta | Cnths x Glta |
| Cochlepetalum | Ccptm | Cnths x Z |
| Cochlesepalum | Cos | Cnths x Zspm |
| Cochlioda | Cda | Natural |
| Coelia | Coelia | Natural |
| Coeliopsis | Clpss | Natural |
| Coelogyne | Coel | Natural Genus |
| Colasepalum | Clsm | Clx x Zspm |
| Colaste | Cste | Clx x Lyc |
| Colax | Clx | Natural |
| Coleottia | Cta | Clx x Glta |
| Colmanara | Colm | Milt x Odm x Onc |
| Comparettia | Comp | Natural |
| Conphronitis | Conph | Const x S |
| Constantia | Const | Natural |
| Cookara | Cook | Bro x C x Diacm x L |
| Coryanthes | Crths | Natural |
| Corybas | Crybs | Natural |
| Coryhopea | Crhpa | Crths x Stan |
| Corymborkis | Crmbrk | Natural |
| Cranichis | Crnchs | Natural |
| Crawshayara | Craw | Asp x Brs x Milt x Onc |
| Cryptarrhena | Crptrr | Natural |
| Cryptocentrum | Crptcm | Natural |
| Cryptochilus | Crypch | Natural |
| Cryptopus | Crypt | Natural |
| Cryptostylis | Crptst | Natural |
| Cuitlauzina | Cuit | Natural Genus |
| Cyclopogon | Cyclpg | Natural |
| Cycnandra | Cycda | Cyc x Gal |
| Cycnoches | Cyc | Natural |
| Cycnodes | Cycd | Cyc x Morm |
| Cycsellia | Cysl | Aslla x Cyc |
| Cymasetum | Cymst | Cym x Ctsm |
| Cymbidiella | Cymla | Natural |
| Cymbidium | Cym | Natural |
| Cymphiella | Cymph | Cym x Eul |
| Cynorkis | Cyn | Natural |
| Cynosorchis | Cynsch | Natural |
| Cyperorchis | Cporch | Natural |
| Cypripedium | Cyp | Natural |
| Cyrtellia | Cyrtl | Aslla x Cyrt |
| Cyrtidiorchis | Cyrtd | Natural |
| Cyrtochilum | Cyrtch | Natural |
| Cyrtoglottis | Cyrtgl | Natural |
| Cyrtopodium | Cyrt | Natural |
| Cyrtorchis | Cyrtcs | Natural |
| Dactylodenia | Dctld | Dact x Gym |
| Dactylorhiza | Dact | Natural |
| Darwinara | Dar | Asctm x Neof x Rhy x V |
| Debruyneara | Dbra | Asctm x Lsa x V |
| Degarmoara | Dgmra | Brs x Milt x Odm |
| Dekensara | Dek | B x C x Schom |
| Dendroberia | Denga | Den x Flkga |
| Dendrobium | Den | Natural |
| Dendrochilum | Dend | Natural Genus |
| Dendrophylax | Denphx | Natural |
| Derosaara | Droa | Asp x Brs x Milt x Odm |
| Devereuxara | Dvra | Asctm x Phal x V |
| Diabroughtonia | Diab | Bro x Diacm |
| Diacattleya | Diaca | C x Diacm |
| Diacrium | Diacm | Natural |
| Diadenium | Ddnm | Natural |
| Diakeria | Dkra | Bark x Diacm |
| Dialaelia | Dial | Diacm x L |
| Dialaeliocattleya | Dialc | C x Diacm x L |
| Dialaeliopsis | Dialps | Diacm x Lps |
| Diaphanangis | Dpgs | Aergs x Dpthe |
| Diaphananthe | Dpthe | Natural |
| Dichaea | Dcha | Natural |
| Dieselara | Dsla | L x Schom x S |
| Dillonara | Dill | Epi x L x Schom |
| Dimorphorchis | Dmrphr | Natural |
| Diothonea | Dthn | Natural |
| Diplocaulobium | Dplclb | Natural |
| Diplomeris | Dplms | Natural |
| Diplonopsis | Dpnps | Dpra x Phal |
| Diploprora | Dpra | Natural |
| Dipteranthus | Dptrnt | Natural |
| Disa | Disa | Natural |
| Disphananthe | Dsphn | Natural |
| Diuris | Diuris | Natural |
| Domindesmia | Ddma | Dga x Hex |
| Domingoa | Dga | Natural |
| Domintonia | Dmtna | Bro x Dga |
| Dominyara | Dmya | Asctm x Lsa x Neof x Rhy |
| Domliopsis | Dmlps | Dga x Lps |
| Doncollinara | Dclna | Cda x Odm x Rdza |
| Dorandopsis | Ddps | Dor x Vdps |
| Doreenhuntara | Dhta | Bol x Cnths x Kefst x Pes |
| Doricentrum | Dctm | Asctm x Dor |
| Doriella | Drlla | Dor x King |
| Doriellaopsis | Dllps | Dor x King x Phal |
| Dorifinetia | Dfta | Dor x Neof |
| Doriglossum | Drgm | Ascgm x Dor |
| Dorisia | Drsa | Dor x Lsa |
| Doristylis | Dst | Dor x Rhy |
| Doritaenopsis | Dtps | Dor x Phal |
| Doritis | Dor | Natural |
| Dorthera | Dtha | Dor x Ren |
| Dossinia | Doss | Natural |
| Dossinimaria | Dsma | Doss x Haem |
| Dossisia | Dsi | Doss x Lus |
| Downsara | Dwsa | Agn x Btmna x Otst x Zspm |
| Dracula | Drac | Natural |
| Dracuvallia | Drvla | Drac x Masd |
| Dresslerara | Dres | Ascgm x Phal x Ren |
| Dresslerella | Drslla | Natural |
| Dressleria | Drsslr | Natural |
| Dryadella | Drya | Natural Genus |
| Drymoanthus | Dry | Natural |
| Duggerara | Dugg | Ada x Brs x Milt |
| Dunnara | Dnna | Bro x Ctps x Dga |
| Dunningara | Dngra | Asp x Milt x Onc |
| Durutyara | Dtya | Btmna x Otst x Z x Zspm |
| Dyakia | Dyakia | Natural |
| Eastonara | Eas | Asctm x Gchls x V |
| Edeara | Edr | Arach x Phal x Ren x Vdps |
| Elearethusa | Elsa | Aret x Elo |
| Elecalthusa | Ecth | Aret x Cpg x Elo |
| Eleorchis | Elo | Natural |
| Elepogon | Elp | Elo x Cpg |
| Eliara | Eliara | Brs x Onc x Rdza |
| Elleanthus | Ellnth | Natural |
| Eltroplectis | Eltrpl | Natural |
| Eltroplectris | Eltrpl | Natural |
| Elythodia | Etha | Elth x Gloss |
| Elythranthrera | Elth | Natural |
| Embreea | Emb | Natural |
| Encyclia | Encycl | Natural |
| Engkhiamara | Ekma | Aer x Arach x Asctm x Ren x V |
| Ephemerantha | Ephem | Natural |
| Epibarkiella | Epbkl | Bark x Epi x Ngl |
| Epiblastus | Epbls | Natural |
| Epibrassonitis | Epbns | B x Epi x S |
| Epicatonia | Epctn | Bro x C x Epi |
| Epicattleya | Epc | C x Epi |
| Epidella | Epdla | Epi x Ngl |
| Epidendrum | Epi | Natural |
| Epidiacrium | Epdcm | Diacm x Epi |
| Epigeneium | Epig | Natural Genus |
| Epiglottis | Epgl | Epi x Scgl |
| Epigoa | Epg | Dga x Epi |
| Epilaelia | Epl | Epi x L |
| Epilaeliocattleya | Eplc | C x Epi x L |
| Epilaeliopsis | Eplps | Epi x Lps |
| Epileptovola | Elva | B x Epi x Lpt |
| Epimicra | Emc | Epi x Ttma |
| Epiopsis | Eps | Ctps x Epi |
| Epipactis | Epcts | Natural |
| Epiphronitis | Ephs | Epi x S |
| Epistoma | Epstm | Amb x Epi |
| Epitonia | Eptn | Bro x Epi |
| Eria | Eria | Natural |
| Eriopsis | Erpss | Natural |
| Ernestara | Entra | Phal x Ren x Vdps |
| Erycina | Ercn | Natural |
| Eryidium | Erdm | Ercn x Onc |
| Erythrodes | Erythd | Natural |
| Esmeralda | Esmrls | Natural |
| Estelaara | Esta | B x C x Epi x Ttma |
| Euanthe | Enth | Natural |
| Euclades | Eucl | Eupha x Oecl |
| Eulocymbidiella | Eucmla | Cymla x Eul |
| Eulophia | Eupha | Natural |
| Eulophidium | Elphd | Natural |
| Eulophiella | Eul | Natural |
| Euryangis | Eugs | Aergs x Echn |
| Eurychone | Echn | Natural |
| Eurygraecum | Eugcm | Angcm x Echn |
| Eurynopsis | Eunps | Echn x Phal |
| Eurystyles | Erstls | Natural |
| Fergusonara | Ferg | B x C x L x Schom x S |
| Fernandezia | Frnndz | Natural |
| Fialaara | Fia | Bro x C x L x Lps |
| Flickingeria | Flkga | Natural |
| Fordyceara | Fdca | Bro x C x Lps x Ttma |
| Forgetara | Fgtra | Asp x Brs x Milt |
| Freedara | Frda | Ascgm x Ren x Vdps |
| Fujioara | Fjo | Asctm x Trgl x V |
| Fujiwarara | Fjw | B x C x Lps |
| Galeandra | Gal | Natural |
| Galeansellia | Gslla | Aslla x Gal |
| Galeodes | Gds | Gal x Morm |
| Galeopetalum | Gptm | Glta x Z |
| Galeorchis | Glrchs | Natural |
| Galeosepalum | Glspm | Glta x Zspm |
| Galeottia | Glta | Natural |
| Gastisia | Gsta | Gchls x Lsa |
| Gastisocalpa | Gscpa | Gchls x Lsa x Pmcpa |
| Gastritis | Gtts | Dor x Gchls |
| Gastrochiloglottis | Gchgl | Gchls x Trgl |
| Gastrochilus | Gchls | Natural |
| Gastrophaius | Gsph | Gs x Phaius |
| Gastrorchis | Gs | Natural |
| Gastrosarcochilus | Gsarco | Gchls x Sarco |
| Gastrostoma | Gstm | Cleis x Gchls |
| Gastrothera | Gsrth | Gchls x Ren |
| Gauntlettara | Gtra | Bro x Ctps x Lps |
| Geodorum | Geod | Natural Genus |
| Georgeblackara | Gbka | Comp x Lchs x Onc x Rdza |
| Gerberara | Gba | B x Diacm x L |
| Gigara | Gigara | Bapt x Comp x Rdza |
| Gladysyeeara | Glya | B x Bro x C x Ctps x Diacm x Epi x L x S |
| Glanzara | Glz | Dor x Phal x Rhy |
| Glossodia | Gloss | Natural |
| Goelia | Goelia | Natural |
| Goffara | Gfa | Lsa x Rhy x V |
| Gohartia | Ghta | Gom x Lhta |
| Gomada | Gmda | Ada x Gom |
| Gomesa | Gom | Natural |
| Gomettia | Gmtta | Comp x Gom |
| Gomochilus | Gmch | Gom x Lchs |
| Gomoglossum | Gmgm | Gom x Odm |
| Gongora | Gga | Natural |
| Goodaleara | Gdlra | Brs x Cda x Milt x Odm x Onc |
| Goodyera | Gdyra | Natural |
| Gottererara | Gott | Asctm x Ren x Vdps |
| Grammangis | Gramm | Natural Genus |
| Grammatocymbidium | Grcym | Cym x Gram |
| Grammatoheadia | Grda | Brom x Gram |
| Grammatophyllum | Gram | Natural |
| Grammatopodium | Grtp | Cyrt x Gram |
| Graphiella | Grpla | Cymla x Grks |
| Graphorkis | Grks | Natural |
| Grobya | Grobya | Natural |
| Gumara | Gum | Diacm x Epi x L |
| Gymnadenia | Gym | Natural |
| Habenaria | Hab | Natural |
| Haemaria | Haem | Natural |
| Hagerara | Hgra | Dor x Phal x V |
| Hagsatera | Hgstra | Natural |
| Hamelwellsara | Hmwsa | Agn x Btmna x Otst x Z x Zspm |
| Hamiltonara | Hmtn | Ada x Brs x Cda x Odm |
| Hanesara | Han | Aer x Arach x Neof |
| Hapalochilus | Hap | Natural |
| Haraella | Hal | Natural |
| Hartara | Hart | Bro x L x S |
| Hartwegia | Hrtwg | Natural |
| Hasegawaara | Hasgw | B x Bro x C x L x S |
| Hattoriara | Hatt | B x Bro x C x Epi x L |
| Hausermannara | Haus |