Oncidium ensatum Lindl. 1842 SECTION Oblongata

Photo by Carl Luer

Another Flower

Photo by Lourens Grobler.


Plant in situ Everglades National Park

Photos by David R. McAdoo

Part shade Hot WarmLATEWinter to Spring

Common Name The Sword Shaped Oncidium

Flower Size 1" [2.5 cm]

Found in Florida, Mexico, Belize, Guatemala, Honduras, Nicaragua and Panama in low altitude, wet forests on rocky slopes at elevations below 1000 meters as a large sized, hot to warm growing epiphyte or terrestrial with compressed, longitudinally ribbed, pale green pseudobulbs enveloped basally by imbricating sheaths with the uppermost being leaf-bearing and carrying 2, apical, erect, linear-ensiform, subcoriaceous, dorsally carinate, conduplicate below into the base leaves that blooms in the late winter and early spring on an axillary, to 6' [2 m] long, arching, paniculate inflorescence arising on a mature pseudobulb.

Plants from the Caribbean attributed to this name are often listed under Oncidium floridanum and many references make them synomonous with O ensatum taking precedence.

Synonyms Cyrtopodium verrucosum Griseb. 1866; Oncidium cerebriferum Rchb.f 1852; Oncidium confusum Rchb.f. 1858;

References W3 Tropicos, Kew Monocot list , IPNI ; Xenia Orchidaceae Rchb.f 1854 as O cerebriferum drawing; Symbolae Antillanae Vol VI Orchidaceae Urban 1909 as Cyrtopodium verrucosum; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 as Oncidium confusum drawing ok; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 as Oncidium cerebriferum; Repert. Sp. Nov. Regni. Veg. Beih. 17: 82. Panama Schlechter 1922 as O cerebriferum; Repert. Sp. Nov. Regni. Veg. Beih. 17: 83. Panama Schlechter 1922 as O confusum; The Orchids of Panama L.O. Williams & P Allen 1946; AOS Bulletin Vol 27 No 6 1958; Encyclopedia of Cultivated Orchids Hawkes 1965; Flora de Venezuela Volumen XV Part 5 Foldats 1970 drawing fide; Las Orquedias de El Salvador Vol 3 Hamer 1981 as Oncidium cerebriferum drawing/photo ok; Icones Planetarum Tropicarum plate 1055 Dodson 1984 drawing fide; Flora Novo-Galaciana Vol 16 McVaugh 1985; Orchid Digest Vol 55 No 4 1991 photo fide; Orchid Digest Vol 61 #3 1997 photo fide; Fieldiana Biology, Flora Costa Ricensis Family # 39 Orchidaceae, subtribes Maxillariinae and Oncidiinae Atwood & Mora 1999 drawing fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 photo fide; Harvard Pap. Bot. 5 #2: Carnevali etal. 2001; The Pictoral Encyclopedia of Oncidium Zelenko 2002; Manual de Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003; Oncidium Vol 1 Koniger 2004 as O confusum drawing/photo fide; Oncidium Vol 2 Koniger 2005 drawing/photo fide; The Orchids of Cuba Llamacho & Laramendi 2005 photofide ; Orchid Species Culture: Oncidium, Bakers 2006; Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018