Oncidium barbatum Lindl. 1821 SECTION Barbata Photo courtesy of Bill Bergstrom

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Common Name The Bearded Oncidium

Flower Size 1 to 1 1/2" [2 to 2.5 cm]

A miniature sized, cool to warm growing, dwarf epiphyte that comes from Bolivia and Brazil at elevations of 100 to 600 meters with ovate to ovate-oblong, ridged pseudobulbs carrying a single, apical, linear-lanceolate to ovate-oblong, acute or emarginate leaf that blooms in the spring with a 12" to 24" [30 to 60 cm] long, erect, short branched, loosely several flowered panicle spotted with red-brown. This species is cool to warm growing and needs bright filtered light, air circulation, and ample water while growing and a lessening in the winter in conjunction with cooler temperatures.

Synonyms Alatiglossum barbatum ( Lindl. ) Baptista 2006; Gomesa barbata (Lindl.) M.W.Chase & N.H.Williams 2009; Oncidium barbatum subsp. limbatum (Lindl.) W.Zimm. 1934; Oncidium barbatum subsp. microglossum (Klotzsch) W.Zimm. 1934; Oncidium barbatum var. johnianum (Schltr.) Kraenzl. 1922; Oncidium barbatum var. labiosum W.Zimm. 1934; Oncidium barbatum var. limbatum Lindl 1855; Oncidium blossfeldianum Schltr. 1915; Oncidium ciliatulum Hoffmans. 1855; Oncidium johnianum Schlechter 1906; Oncidium microglossum Kl. 1855; Oncidium suscephalum Barb.Rodr. 1881

References W3 Tropicos, Kew Monocot list , IPNI ; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 as Oncidium johnianum; AOS Bulletin Vol 27 No 5 1958 drawing; Encyclopedia of Cultivated Orchids Hawkes 1965; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 drawing fide; Australian Orchid Review Vol 66 No 2 2001 photo; Orchid Species Culture: Oncidium, Bakers 2006; Oncidium Vol 2 Koniger 2005; The Pictoral Encyclopedia of Oncidium Zelenko 2002; AOS Bulletin Vol 76 No 2 2007 photo as Alatiglossum barbatum; Mille et Une Mini Orchideees Roguenant 2009 photo fide; Orchids of Brazil Vol 1 Oncidinae Baptista, Harding & Neto 2011 as Alatiglossum barbatum photo fide;

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