| Genus - Species - - Year | Subgenus Section Subsection Series | Distribution | #descendants | #photos |
|---|---|---|---|---|
| Acianthera unguicallosa 2003 | Revillagigedo Is. (I. Socorro) | |||
| Acrolophia ustulata 1894 | SW. Cape Prov. | |||
| Adenoncos uniflora 1920 | S. Sumatera | |||
| Aerangis ugandensis 1931 | E. Zaïre to Kenya | 3 | 3 | |
| Aeranthes unciformis 2012 | Madagascar | |||
| Aeridostachya unifolia 1983 | ||||
| Agrostophyllum uniflorum 1905 | Sec. Agrostophyllum | New Guinea | ||
| Agrostophyllum urdanetae 2014 | Sec. Agrostophyllum | Philippines | ||
| Anathallis unduavica 2001 | Bolivia (La Paz) | |||
| Andinia uchucayensis 2017 | Ecuador | |||
| Andinia ursula 2017 | Brachycladium Sec. Amplectentes_old | Colombia (Boyac?) | ||
| Angraecum umbrosum 1985 | Sec. Arachnangraecum_old | Malawi | ||
| Angraecum undulatum 1915 | Mascarenes | |||
| Angraecum urschianum 1961 | Sec. Perrierangraecum | ENE. Madagascar | 17 | |
| Anguloa uniflora 1798 | C. Peru | 13 | 5 | |
| Appendicula uncata 1896 | S. Pen. Malaysia, Borneo | |||
| Appendicula uncata subsp. sarawakensis 1984 | Borneo (Sabah, Sarawak) | |||
| Appendicula uncata subsp. uncata | S. Pen. Malaysia | |||
| Appendicula undulata 1825 | Sec. Pododesme | Pen. Thailand to W. & C. Malesia | 9 | |
| Appendicula undulata var. longicalcarata 1921 | Sumatera to Philippines | |||
| Appendicula undulata var. undulata | Pen. Thailand to W. & S. Malesia | |||
| Aspidogyne umbraticola 2012 | SE. Colombia to Bolivia | |||
| Aspidogyne unicornis 2012 | Venezuela | |||
| Aspidogyne utriculata 1995 | Costa Rica | |||
| Barkeria uniflora 1977 | C. & SW. Mexico | 29 | 2 | |
| Bletia urbana 1968 | Mexico (México D.F., Oaxaca) | |||
| Brachionidium uxorium 1995 | Bolivia | |||
| Brachypeza unguiculata 2014 | Andaman Is. to Malesia | 14 | ||
| Brachystele unilateralis 1920 | Peru, Chile to SW. Argentina | |||
| Bulbophyllum uhl-gabrielianum 2009 | Sec. Micranthae | Brazil (Espírito Santo) | ||
| Bulbophyllum umbellatum 1830 | WC. Himalaya to Taiwan | 6 | ||
| Bulbophyllum umbellatum var. fuscescens 1984 | Nepal to Sikkim | |||
| Bulbophyllum umbellatum var. umbellatum | WC. Himalaya to Taiwan | 3 | ||
| Bulbophyllum umbraticola 1913 | Papua New Guinea | 7 | ||
| Bulbophyllum uncinatum 2003 | Sulawesi | 5 | ||
| Bulbophyllum unciniferum 1973 | Sec. Brachyantha | China (S. Yunnan) to N. Indo-China | ||
| Bulbophyllum undatilabre 1912 | Sec. Polymeres | New Guinea | ||
| Bulbophyllum undecifilum 1927 | Sec. Epicranthes | W. Jawa, Borneo (Sabah, Sarawak) | 6 | |
| Bulbophyllum unguiculatum 1850 | Sec. Stachysanthes | Malesia to New Guinea | 5 | |
| Bulbophyllum unguilabium 1913 | Sec. Monanthes | New Guinea | ||
| Bulbophyllum unicaudatum 1913 | Sec. Monanthes | New Guinea | ||
| Bulbophyllum unicaudatum var. unicaudatum | New Guinea | |||
| Bulbophyllum uniflorum 1844 | Sec. Sestochilos | W. & C. Malesia | 25 | |
| Bulbophyllum unifoliatum 1921 | Sec. Oreonastes | Rwanda to S. Trop. Africa | ||
| Bulbophyllum unifoliatum subsp. flectens 1987 | SW. & S. Tanzania to Malawi | |||
| Bulbophyllum unifoliatum subsp. infracarinatum 1987 | S. Trop. Africa | |||
| Bulbophyllum unifoliatum subsp. unifoliatum | Rwanda to Angola | |||
| Bulbophyllum unitubum 1929 | Sec. Hyalosema | New Guinea | 19 | |
| Bulbophyllum univenum 1993 | Sec. Beccariana | Sulawesi | ||
| Bulbophyllum upupops 2015 | Sec. Epicranthes | Borneo (Sarawak) | 8 | |
| Bulbophyllum uroglossum 1921 | Sec. Monanthes | New Guinea | ||
| Bulbophyllum uroplatoides 2009 | Madagascar | |||
| Bulbophyllum urosepalum 1913 | Sec. Hyalosema | New Guinea | ||
| Bulbophyllum ustulatum 2018 | Vietnam (Indo-China, Asia-Tropical) | |||
| Bulbophyllum ustusfortiter 1993 | Sec. Vesicisepalum | E. New Guinea | ||
| Bulbophyllum uviflorum 1999 | Sulawesi | |||
| Caladenia uliginosa 1984 | Calonema | SW. Australia | 1 | |
| Caladenia uliginosa subsp. candicans 2001 | SW. Australia | |||
| Caladenia uliginosa subsp. patulens 2001 | SW. Australia | |||
| Caladenia uliginosa subsp. uliginosa | SW. Australia | |||
| Caladenia ultima 2001 | Calonema | WSW. Australia | ||
| Caladenia ustulata 2010 | New South Wales | 1 | ||
| Calanthe uncata 1855 | Darjiling | |||
| Calanthe undulata 1903 | Borneo | |||
| Calanthe unifolia 1923 | N. Sumatera | |||
| Calochilus uliginosus 2006 | SW. Australia | |||
| Campylocentrum ulei 1906 | Sec. Campylocentrum | SE. Ecuador to Brazil and Argentina (Misiones) | ||
| Catasetum uncatum 1895 | Catasetum Sec. Isoceras | Brazil (Pernambuco) | 4 | 6 |
| Caucaea universitascuencae 2016 | Ecuador (Western South America, Southern America) | |||
| Chelonistele unguiculata 1935 | Borneo (Brunei, Sarawak) | |||
| Chiloschista usneoides 1832 | Himalaya to Myanmar | 1 | 9 | |
| Chysis undulata 1894 | ||||
| Cleisostoma uraiense 1974 | Nicobar Is., S. Taiwan (incl. Lan Yü) to Philippines, N. Borneo | 7 | ||
| Cleistes uliginosa 1967 | WC. Brazil | |||
| Cleistes unguiculata 1926 | SE. Brazil | |||
| Cleistes unifoliata 1990 | SE. Venezuela, Suriname | |||
| Cleistes uribei 2012 | Colombia | |||
| Coelogyne undatialata 1928 | Sec. Lentignosae | Maluku (Buru) | ||
| Coelogyne usitana 2001 | Sec. Speciosae | Philippines | 14 | 22 |
| Coelogyne ustulata 1874 | Sec. Proliferae | Myanmar to N. Thailand | ||
| Corybas umbonatus 1923 | Sec. Geosiphon | New Guinea | ||
| Corybas umbrosus 1986 | Jawa | |||
| Corybas undulatus 1928 | SE. Queensland to E. New South Wales | |||
| Corybas unguiculatus 1871 | S. & E. Australia | 30 | ||
| Corybas urikensis 1983 | Sec. Gastrosiphon | New Guinea | ||
| Cremastra unguiculata 1897 | China (Jiangxi), Korea, C. & S. Japan | |||
| Crepidium umbonatum 1995 | Pseudoliparis Sec. Pseudoliparis | New Guinea | ||
| Crepidium umbraticola 1995 | Sulawesi | |||
| Crepidium uncatum 1996 | Philippines (Luzon) | |||
| Crepidium undulatum 1995 | Pseudoliparis Sec. Pseudoliparis | New Guinea | ||
| Cylindrolobus uniflorus 2015 | Borneo (Sabah, Sarawak) | |||
| Cylindrolobus uninodus 2017 | Null | |||
| Cynorkis uliginosa 2015 | Madagascar | |||
| Cynorkis uncata 1902 | Kenya to Tanzania | 4 | ||
| Cynorkis unguiculata 2017 | N. Madagascar | |||
| Cynorkis uniflora 1835 | Sec. Cynorkis | C. Madagascar | 16 | |
| Cynorkis usambarae 1898 | Tanzania (C. Usambara Mts.) | |||
| Cyrtochilum umbonatum 1917 | C. & SC. Ecuador | |||
| Cyrtochilum umbrosum 2001 | Sec. Cimicifera | Colombia to NW. Venezuela | ||
| Cyrtochilum undulatum 1816 | Sec. Eucyrtochilum | Colombia | 1 | |
| Cyrtochilum ustulatum 1917 | Colombia | |||
| Dactylorhiza umbrosa 1937 | W. & C. Asia to Siberia | 6 | ||
| Dactylorhiza urvilleana 1981 | N. & NE. Turkey to Iran | 6 | ||
| Dendrobium uliginosum 1910 | New Guinea | |||
| Dendrobium umbellatum 1861 | Sec. Cadetia Subsec. Cadetia | Maluku to New Guinea | ||
| Dendrobium umbonatum 1985 | Sec. Stuposa | Indo-China | 5 | |
| Dendrobium uncatum 1858 | Sec. Aporum | N. Borneo, W. Jawa (incl. Krakatau) | 11 | |
| Dendrobium uncipes 1912 | Sec. Latouria | New Guinea | ||
| Dendrobium undatialatum 1912 | Sec. Calyptrochilus | New Guinea to Solomon Is. | ||
| Dendrobium unibulbe 2011 | Sec. Bilobulatae | Indo-China | ||
| Dendrobium unicarinatum 1989 | Sec. Monanthos | Fiji (Viti Levu) | ||
| Dendrobium unicorne 1915 | Philippines (Laguna, Leyte) | |||
| Dendrobium unicum 1970 | Sec. Dendrobium | Indo-China | 64 | 32 |
| Dendrobium uniflorum 1851 | Sec. Distichophyllae | Indo-China to W. & C. Malesia | 31 | |
| Dendrobium usterii 1906 | Philippines | |||
| Dendrobium usterioides 1915 | Sec. Crumenata | Philippines (Luzon, Mindoro) | ||
| Dendrobium ustulatum 1932 | Pen. Malaysia, Borneo (Sabah, Sarawak) | |||
| Dendrobium utile 1904 | Sulawesi to Maluku | |||
| Dendrochilum uncatum 1855 | Platyclinis Sec. Platyclinis | Taiwan (Hengchun Pen., Lan Yü) to Philippines | 12 | |
| Dendrochilum uncatum var. longispicatum 1997 | Philippines | |||
| Dendrochilum uncatum var. uncatum | Taiwan (Hengchun Pen., Lan Yü) to Philippines | 5 | ||
| Dendrochilum undulatum 2007 | Philippines ? | 1 | ||
| Dendrochilum unicallosum 1937 | Philippines (Luzon) | |||
| Dendrochilum unicorne 1952 | Philippines (Luzon: Mt. Simakoko) | |||
| Diacrium ulmckei 1927 | ||||
| Disa ukingensis 1915 | Sec. Micranthe | S. Tanzania to E. Zambia | ||
| Disa uncinata 1884 | Sec. Disella | SW. & S. Cape Prov. | ||
| Disa uniflora 1767 | Sec. Disa | SW. Cape Prov. | 429 | 12 |
| Disperis uzungwae 1986 | Tanzania | |||
| Diuris unica 2006 | Queensland to New South Wales | |||
| Dracula ubangina 1980 | Dracula Sec. Dracula Subsec. Dracula | Ecuador (Pichincha) | 5 | |
| Echinosepala uncinata 2002 | C. America to Venezuela, Jamaica | |||
| Encyclia unaensis 1991 | Brazil (Bahia) | 3 | ||
| Encyclia uxpanapensis 1999 | Mexico (Veracruz, Oaxaca) | |||
| Epiblastus unguiculatus 2015 | W. New Guinea | |||
| Epidendrum ulei 1914 | S. Venezuela to Guyana and N. Brazil | |||
| Epidendrum uleinanodes 1999 | Sec. Nanodes | N. Brazil to Ecuador | ||
| Epidendrum uncinatum 1998 | Peru | |||
| Epidendrum unguiculatum 1976 | N. South America to Peru | |||
| Epidendrum unicallosum 2006 | Panama | |||
| Epidendrum unifoliatum 1921 | Peru | |||
| Epidendrum upanodifforme 1999 | Ecuador | |||
| Epidendrum urbanianum 1910 | Lesser Antilles to Venezuela | |||
| Epidendrum uribei 1957 | Colombia | |||
| Epidendrum uribeianum 2016 | Colombia | |||
| Epidendrum urichianum 1992 | S. Venezuela to Guyana | |||
| Epidendrum urraoense 1999 | Colombia (Valle del Cauca, Antioquia) | |||
| Epidendrum urubambae 2001 | Peru | |||
| Epidendrum utcuyacuense 1993 | Peru | |||
| Epipactis ulugurica 1934 | Tanzania (Uluguru Mts.) | |||
| Eria umbonata 1894 | New Guinea | |||
| Eulophia ukingensis 1915 | Tanzania | |||
| Gastrodia umbrosa 2017 | Null | |||
| Gastrodia uraiensis 2010 | Taiwan | 1 | ||
| Gastrodia urceolata 1991 | Queensland | |||
| Glomera uniflora 1908 | Sec. Uniflorae | New Guinea | ||
| Gomesa uhlii 2009 | Sec. Waluewa | Brazil (Espírito Santo) | ||
| Gomesa uniflora 2009 | SE. & S. Brazil | 11 | ||
| Gongora unicolor 1923 | Sec. Eugongora Subsec. Gongora | S. Mexico to C. America | ||
| Goodyera umbrosa 2014 | Queensland | |||
| Govenia utriculata 1839 | Mexico to Trop. America | 6 | ||
| Grosourdya urunensis 2011 | Borneo (Sabah) | |||
| Habenaria ugandensis 1962 | Sec. Replicatae | Uganda | ||
| Habenaria uhehensis 1906 | Sec. Pentaceras | Tanzania to S. Trop. Africa | ||
| Habenaria ulei 1893 | Brazil (Santa Catarina) | |||
| Habenaria uliginosa 1850 | Brazil (Minas Gerais) | |||
| Habenaria umbraticola 1877 | Sec. Leptoceras | SE. & S. Brazil | ||
| Habenaria uncata 2002 | Mexico (Morelos, Oaxaca) | |||
| Habenaria uncatiloba 1943 | Peru | |||
| Habenaria uncicalcar 1962 | Sec. Pentaceras | S. Tanzania to S. Trop. Africa | ||
| Habenaria uncinata 1998 | NE. Zaïre (Ruwenzori) | |||
| Habenaria undulata 1895 | Réunion | |||
| Habenaria unellezii 1990 | Venezuela (Cojedes, Portuguesa) | |||
| Habenaria unguilabris 1990 | Zimbabwe | |||
| Habenaria unidentata 1892 | 42 JAW | |||
| Habenaria unifoliata 1942 | S. Trop. Africa | |||
| Habenaria urbaniana 1893 | Sec. Leptoceras | Brazil (Tocantins to Minas Gerais) | ||
| Habenaria uruguayensis 1976 | Sec. Leptoceras | N. Argentina to Uruguay | ||
| Hancockia uniflora 1903 | China (S. Yunnan) to N. Vietnam, Japan (Yakushima), Nansei-shoto (Osumi Gunto), NW. Taiwan | |||
| Holothrix unifolia 1881 | Ethiopia (Gonder, Shewa) | |||
| Houlletia unguiculata 1920 | Colombia | |||
| Ionopsis utricularioides 1826 | S. Florida, S. Mexico to Trop. America | 29 | 21 | |
| Isochilus unilateralis 1894 | Mexico | |||
| Jumellea usambarensis 1982 | Kenya to N. Mozambique | |||
| Laelia undulata 1941 | Schomburgkia | Costa Rica to Trinidad | 159 | 12 |
| Lepanthes umbonata 1984 | Sec. Lepanthes Subsec. Lepanthes | Colombia (Antioquia, Nariño) | ||
| Lepanthes umbonifera 1995 | Costa Rica | |||
| Lepanthes uncifera 1984 | Sec. Lepanthes Subsec. Lepanthes | Colombia (Chocó, Antioquia) | ||
| Lepanthes uncinata 2012 | Venezuela | |||
| Lepanthes unguicularis 1968 | Jamaica (Cockpit Co.) | 1 | ||
| Lepanthes unijuga 1996 | Sec. Lepanthes Subsec. Lepanthes | Ecuador (Imbabura) | ||
| Lepanthes unitrinervis 1993 | Venezuela (Bolívar) | |||
| Lepanthes urania 1996 | Sec. Lepanthes Subsec. Lepanthes | Ecuador (Carchi) | ||
| Lepanthes urbaniana 1926 | Hispaniola | |||
| Lepanthes uribei 2003 | Sec. Lepanthes Subsec. Lepanthes | Colombia (Valle del Cauca) | 1 | |
| Lepanthes urotepala 1856 | Sec. Lepanthes Subsec. Lepanthes | Ecuador | ||
| Lepanthes usitata 1983 | Lepanthes Sec. Lepanthes Subsec. Breves | Bolivia | ||
| Lepanthes utyumii 2015 | Costa Rica, 80 COS | |||
| Lepanthes uvallensis 2002 | Guatemala | |||
| Lepanthes uxoria 1996 | Lepanthes Sec. Lepanthes Subsec. Lepanthes | Ecuador (Morona-Santiago) | 25 | |
| Lepanthopsis ubangii 1991 | Lepanthopsis Sec. Lepanthopsis | Ecuador (Zamora-Chinchipe) | 12 | |
| Leptotes unicolor 1877 | Brazil to NE. Argentina | 6 | 12 | |
| Liparis udaii 2009 | India (Orissa) | |||
| Luisia unguiculata 1926 | Lesser Sunda Is. (Timor) | |||
| Macroclinium undulatum 2017 | Null | |||
| Malaxis umbelliflora 1788 | Cuba, Jamaica | |||
| Malaxis unifolia 1803 | E. Canada, C. & E. U.S.A. to C. America, Caribbean | 2 | ||
| Malaxis urbana 1992 | Mexico (México State, Oaxaca) | |||
| Masdevallia uncifera 1878 | Masdevallia Sec. Masdevallia Subsec. Masdevallia | W. Colombia to N. Ecuador | 2 | |
| Masdevallia unguentum 2012 | Colombia | 3 | ||
| Masdevallia uniflora 1798 | Peru (Junín) | 139 | 14 | |
| Masdevallia urceolaris 1922 | Masdevallia Sec. Masdevallia Subsec. Masdevallia | Colombia (Norte de Santander) | ||
| Masdevallia ustulata 1983 | Masdevallia Sec. Masdevallia Subsec. Masdevallia | NE. Colombia to N. Peru | 1 | 4 |
| Masdevallia utriculata 1979 | Masdevallia Sec. Durae | Panama | 5 | |
| Maxillaria ubatubana 1947 | SE. Brazil | 11 | ||
| Maxillaria umbratilis 1941 | Costa Rica to Panama | |||
| Maxillaria uncata 1837 | S. Trop. America | 16 | ||
| Maxillaria unguiculata 1920 | Colombia | |||
| Maxillaria unguilabia 1920 | Colombia | |||
| Maxillaria unicarinata 1944 | Peru (Ayacucho) | |||
| Maxillaria uniflora 2015 | Costa Rica, W. South America | 1 | ||
| Maxillaria urbaniana 1899 | Ecuador | |||
| Mediocalcar umboiense 1997 | Bismarck Arch. (Umboi I.) | 4 | ||
| Mediocalcar uniflorum 1911 | Sec. Eu-Mediocalcar | New Guinea | ||
| Microchilus uribei 2014 | Colombia | |||
| Micropera uncinata 1972 | Jawa | |||
| Micropera utriculosa 1972 | Philippines | 6 | ||
| Microtis unifolia 1871 | S. China to Japan, Malesia, Australasia to SW. Pacific | 4 | ||
| Mormodes uncia 1869 | Sec. Coelodes | Mexico (Oaxaca) | 14 | 1 |
| Myoxanthus uxorius 1982 | Myoxanthus Sec. Antennella | Colombia to Ecuador | 16 | |
| Myrosmodes ustulata 1978 | SW. Colombia to Ecuador and NW. Venezuela | |||
| Neotinea ustulata 1997 | Europe to Caucasus | 8 | 15 | |
| Neotinea ustulata var. aestivalis 2006 | Europe | |||
| Neotinea ustulata var. ustulata | Europe to Caucasus | 1 | ||
| Neottia unguiculata 1995 | N. Myanmar | |||
| Neottia ussuriensis 1969 | S. Primorye |