Habenaria
Habenariorchis
Habenella
Habenorkis
Hadrobrasilaelia
Hadrocattleya
Hadrodungsia
Hadrolaelia
Haemaria
Haematorchis
Hagsatera
Hakoneaste
Hallackia
Halleorchis
Hammarbya
Hamularia
Hancockia
Hapalochilus
Hapalorchis
Haplochilus
Haraella
Hardingia
Harrisella
Hartwegia
Hayata
Hecabe
Hederorkis
Helcia
Helleborine
Helleriella
Hellerorchis
Helonoma
Helorchis
Hemihabenaria
Hemiperis
Hemipilia
Hemipiliopsis
Hemiscleria
Henosis
Hermibicchia
Herminium
Herminorchis
Herpetophytum
Herpysma
Herschelia
Herschelianthe
Herscheliodisa
Hetaeria
Heteranthocidium
Heterotaxis
Heterozeuxine
Hexadesmia
Hexalectris
Hexameria
Hexisea
Hexopia
Himantoglossum
Hintonella
Hippeophyllum
Hippoglossum
Hipporkis
Hirtzia
Hispaniella
Hoehneella
Hoffmanncattleya
Hoffmanncyclia
Hoffmannseggella
Hofmeistera
Hofmeisterella
Holcoglossum
Holmesia
Hologyne
Holopogon
Holothrix
Homalopetalum
Homocolleticon
Hordeanthos
Horichia
Hormidium
Horvatia
Houlletia
Hsenhsua
Huebneria
Humboltia
Huntleya
Huttonaea
Hyacinthorchis
Hyalosema
Hybochilus
Hydranthus
Hydrorchis
Hygrochilus
Hylaeorchis
Hylophila
Hymeneria
Hymenochilus
Hymenorchis
Hypodematium
Hysteria
