Oncidium nudum Bateman ex Lindl.1837 SECTION Cebolletae Photo courtesy of © Lourens Grobler

Part shade Hot Winter

Common Name The Naked Oncidium

Flower Size .4 to .8" [1 to 2 cm]

Found in Panama, Colombia and Venezuela at elevations of 100 to 350 meters in hot humid lowlands as a medium sized, hot growing epiphyte with closely spaced, very small pseudobulbs completely enveloped by gray to white leaf sheaths and carrying a single, apical, fleshy, acute, terete, smooth, dark brown green, ribbed with age leaves that blooms in the winter on an axillary, horizontal to ascending to erect, paniculate, 20" [50 cm] long, many flowered inflorescence with each several flowered branch held at close to 90 degrees to the inflorescence and are all held to the apical half.

Synonyms Cohniella nuda (Bateman ex Lindl.) Christenson 1999; Oncidium ebrachiatum Ames & C.Schweinf. 1925; Oncidium humboldtii Schltr. 1926; Oncidium ottonis Rchb.f. ex Kraenzl 1922; Stilifolium nudum (Bateman ex Lindl.) Königer & D.Pongratz 1997; Trichocentrum nudum (Bateman ex Lindl.) M.W.Chase & N.H.Williams 2001

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1854; Bonplandia Rchb.f 1855; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1922 drawing fide; AOS Bulletin Vol 27 No 6 1958 as O ebrachiatum; The Orchids of Panama L.O. Williams & P Allen 1946 as O ebrachiatum; Venezuelan Orchids Illustrated Vol 1 Dunsterville & Garay 1959 drawing fide; AOS Bulletin Vol 30 No 9 1961; Encyclopedia of Cultivated Orchids Hawkes 1965 as O ebrachiatum; AOS Bulletin Vol 38 No 6 1969; Flora de Venezuela Volumen XV Part 5 Foldats 1970 drawing fide; Orchids of Venezuela, An Illustrated Field Guide Vol 2 Dunsterville & Garay 1979 drawing fide; Native Colombian Orchids Vol 3 COS 1991 as O cebolleta photo fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 ; Native Colombian Orchids Vol 6 COS 1998 = O nudum; Orchids of Venezuela [An illustrated field guide] Vol. 1 Ramiro and Carnevali 2000 as Cohniella nuda drawing fide; Lindleyana Vol 16 No 2 2001 as Trichocentrum nudum; Rudolf Schlechter Die Orchideen Band 1C lieferung 44-45 pg 2763 - 2898 Brieger 2001 as Cohniella nuda; Orquideas Nativas del Tachira Cesar Fernandez 2003 as Cohniella nuda photo fide; Orquideologia Vol. 23 No 2 2004; Orchid Species Culture Oncidium/Odontoglossum Alliance Bakers 2005 as Cohniella nuda; Orchid Species Of Peru Zelenko & Bermudez 2009 photo fide as Trichocentrum nudum