Oncidium cariniferum (Rchb. f.) Beer 1854 Photo by © Eric Hunt and His Orchid Website.

Another flower Angle Photo courtesy of Patricia Harding

Part shade Cool to Cold Spring Fall to Winter

Common Name The Keeled Oncidium

Flower Size about 2" [about 5 cm]

Found in Costa Rica, Panama and Venezuela? at elevations of 1000 to 2400 meters on larger branches in lower montane forest as a medium sized, cool to cold growing epiphyte with sulcate, ovoid, compressed pseudobulbs subtended by foliaceous bracts with 2 apical, coriaceous, elliptic-lanceolate, conduplicate at the base leaves that blooms in the spring, fall and winter on a erect or arching, 4' [120 cm] long, branched, many flowered, paniculate, fractiflex inflorescence arising on a mature pseudobulb with narrowly ovate-triangular, acute floral bracts.

Synonyms Collare-stuartense cariniferum (Rchb.f.) Senghas & Bockemühl 1997; Miltonioides carinifera (Rchb.f.) Senghas & Luckel. 1997; Odontoglossum cariniferum Rchb. f. 1852; Odontoglossum hastilabium var. fuscatum Hook 1856

References W3 Tropicos, Kew Monocot list , IPNI ; Lankester's Epidendra Website CR ; Bot. Zeitung. Berlin 10(37): 638. 1852 as Odonglossum cariniferum; Bonplandia Rchb.f 1856 as Odontoglossum cariniferum; Die Orchideen Schlechter 1915 as Odontoglossum cariniferum; Atlas des Orchidees Cultivees Constantin 1920 as Odontoglossum cariniferum drawing fide; Repert. Sp. Nov. Regni. Veg. Beih. 17: 78. Panama Schlechter 1922 as Odontoglossum cariniferum; Repert. Sp. Nov. Regni. Veg. Beih. 19: 63. Costa Rica Schlechter 1923 as Odontoglossum cariniferum; Repert. Sp. Nov. Regni. Veg. Beih. 19: 146. Costa Rica Schlechter 1923 as Odontoglossum cariniferum; The Orchids of Panama L.O. Williams & P Allen 1946 as Odontoglossum cariniferum; Encyclopedia of Cultivated Orchids Hawkes 1965 as Odontoglossum cariniferum; Flora de Venezuela Foldats Volumen XV Part 5 1970 as Odontoglossum cariniferum; AOS Bulletin Vol 61 No 5/461 1992 photo; Icones Planetarum Tropicarum plate 1569 Atwood 1993 drawing fide; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 as Miltonioides carinifera drawing fide; Fieldiana Biology, Flora Costa Ricensis Family # 39 Orchidaceae, subtribes Maxillariinae and Oncidiinae Atwood & Mora 1997; Orchid Species Culture: Oncidium, Bakers 2006; The Pictoral Encyclopedia of Oncidium Zelenko 2002; Oncidium Vol 3 Koniger 2007 photo/drawing; Orchids of Costa Rica Vol 1 Morales 2009 photo fide;