Onc. roseum photo by John Varigos

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Orchid Species: Oncidium roseum

Kew currently accepted name is Trichocentrum carthagenense

Oncidium roseum is an orchid species identified by Lodd. ex Paxton in 1854. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Trichocentrum carthagenense.
Genus
Oncidium (Onc.)
Grex
roseum
Parents
Species
Author
Lodd. ex Paxton
Year
1854
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ORIGIN: Found in southeastern Ecuador and Peru in extremely wet, montane forests at elevations of 1500 to 2200 meters.

DESCRIPTION: Miniature to small sized, warm to cold growing epiphyte with an ovate, compressed, ancipitous on the margin pseudobulb enveloped basally by a few distichous sheaths with the uppermost being foliaceous and carrying a single, apical, coriaceous, strap-shaped, dark green leaf that is conduplicate towards the base and blooms at most any time of the year on a basal, from the leaf sheaths, erect, 5.2 to 16 [13 to 45 cm] long, several to many [20] flowered inflorescence with tubular, acuminate, inflated bracts and arising on a newly matured pseudobulb and carrying successive flowers.

FLOWER SIZE: 1.5 inches [3.75 cm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Oncidium Onc roseoides 2008 M.W.Chase & N.H.Williams
Add+ Trichocentrum Trt carthagenense 2001 (Jacq.) M.W.Chase & N.H.Williams
Add+ Lophiaris Lop carthagenensis 1993 (Jacq.) Braem
Add+ Oncidium Onc carthagenense f. xanthinum
Add+ Epidendrum Epi carthagenense 1760 Jacq.
Add+ Cymbidium Cym undulatum 1799 Sw.
Add+ Epidendrum Epi crispum 1783 Lam.
Add+ Mesospinidium Meo roseum 1872 (Lindl.) Rchb.f.
Add+ Odontoglossum Odm roseum 1845 Lindl. in G.Bentham
Add+ Oncidium Onc huntianum 1840 Hook.
Add+ Oncidium Onc huntleyanum 1855 Beer ex Lindl.
Add+ Oncidium Onc kymatoides 1922 Kraenzl. in H.G.A.Engler (ed.)
Add+ Oncidium Onc obsoletum 1855 Galeotti ex Lindl.
Add+ Oncidium Onc panduriferum 1816 Kunth in F.W.H.von Humboldt
Add+ Oncidium Onc salvadorense 1913 Schltr.
Add+ Oncidium Onc sanguineum 1839 Lindl.
Add+ Oncidium Onc carthagenense 1800 (Jacq.) Sw.
Add+ Cochlioda Cda rosea 1886 (Lindl.) Ridl.
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