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

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Orchid Species: Oncidium riograndensis

Kew currently accepted name is Gomesa riograndensis

Oncidium riograndensis is an orchid species name for which no taxonomic record was found. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Gomesa riograndensis.
Genus
Oncidium (Onc.)
Grex
riograndensis
(traditional Sander nomenclature)
Parents
Species
Author
Year
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ORIGIN: Found in Espirito Santo, Rio de Janeiro and Sao Paulo states of Brazil and northeastern Argentina at elevations of 300 meters.

DESCRIPTION: Small sized, warm to cool growing epiphyte with elongate elliptical to cylindrical smooth pseudobulbs partially enveloped basally by a few pairs of dry, thin, leafless bracts and carrying 2 apical, narrowly elliptic, acute, shortly condplicate below into the petiole-like base that blooms in the late spring on an axillary, ascending to arcuate spreading, paniculate, short, slender, arching, branched, 12 + [30 cm] long, many flowered inflorescence arising on a mature pseudobulb through the dry sheath.

FLOWER SIZE: 3/4 inch [2 cm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Gomesa Gom riograndensis 2009 (Cogn.) M.W.Chase & N.H.Williams
Add+ Baptistonia Bapt cassolana 2004 (V.P.Castro & Campacci) Chiron & V.P.Castro
Add+ Baptistonia Bapt riograndense 2004 (Cogn.) Chiron & V.P.Castro
Add+ Oncidium Onc cassolanum 2001 V.P.Castro & Campacci
Add+ Oncidium Onc riograndense 1906 Cogn. in C.F.P.von Martius & auct. suc. (eds.)
Most awarded/recent cultivars: Onc. riograndense 'Vera Cruz' (1994)
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