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There are currently no photos of plants of Oncidium williamsianum for sale by members of ORCHIDS.ORG. Below are other recent plants for sale:

Dendrobium var. Love Memory 'Fizz' $30.00 listed by Eva Boczon Chicago, USA Local Only

BC Makai "Mayumi" listed by Archie McBroom Roan Mountain, Tn, USA

LAELIA AND MYRMECOPHILA HYBRIDS $25.00 listed by dr adam t cohen sarasota, USA
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Orchid Species: Oncidium williamsianum

Kew currently accepted name is Cyrtochilum williamsianum

Oncidium williamsianum is an orchid species identified by Dodson in 1996. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Cyrtochilum williamsianum.
Genus
Oncidium (Onc.)
Grex
williamsianum
Parents
Species
Author
Dodson
Year
1996
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ORIGIN: Found in Colombia and northwestern Ecuador at elevations around 1200 to 1410 meters.

DESCRIPTION: Small sized, cool growing epiphyte with caespitose, narrowly ovoid pseudobulbs enveloped almost completely by 8 to 10, distichous, leaf-bearing sheaths and carrying a single, apical, oblong-elliptic, acute, conduplicate below into the subpetiolate base leaf that blooms iun the fall on an axillary, erect to slightly wiry, few flowered, fractiflex, to 20 to 80 [50 to 200 cm] long, sometimes paniculate with a few widely spaced, short, fractiflex, few flowered branches, successively many flowered inflorescence with conspicuous, convex-involute bracts.

FLOWER SIZE: 0.6 inches [1.5 cm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Cyrtochilum Cyr williamsianum 2001 (Dodson) Dalström
Add+ Trigonochilum Tgc rodrigoi 2000 Königer
Add+ Trigonochilum Tgc williamsianum 2008 (Dodson) Königer
Add+ Cyrtochilum Cyr rodrigoi 2001 (Königer) Dalström
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