Oncidium graminifolium (Lindl.) Lindl. 1841 SECTION Concoloria Photo by © Edouard Faria.

Another Color Variation Photo by © Noble Bashor.

Another Color Variation Photo courtesy of Andy's Orchids Copyright © 2002 All rights reserved.

Flowering plant in situ Photo by © Weyman Bussey


Common Name The Grass Leafed Oncidium

Flower Size 3/4" [2 cm]

A small sized, warm to cool growing, terrestrial species from dry pine forests in south western Mexico, Guatemala and Honduras at elevations of 1100 to 2500 meters with ovoid to elliptic, compressed, sulcate, pale green pseudobulb with 4 to 6 basal, subcoriaceous sheaths with the uppermost being leaf-bearing and 2 to 3 apical, narrowly linear-elliptic, deciduous leaves that blooms in the summer through spring on a racemose, sometimes branched, 12 to 30 " [30 to 75 cm] long, erect to arcuate inflorescence arising on a mature pseudobulb with triangular, scarious bracts that has 7 to 15, successively opening, showy flowers which open 2 to 5 at a time all placed at the apex of the inflorescence.

This species is considered by many to be O. brachyandrum but others separate this as a species because it is a terrestrial, has succesive flowers and etal. and the other is epiphytic and has simultaneously opening flowers.

Synonyms Concocidium graminifolium (Lindl.) Romowicz & Szlach. 2006; *Cyrtochilum graminifolium Lindley 1840; Cyrtochilum filipes Lindley 1841; Oncidium filipes [Lindley]Lindley 1855; Oncidium Wraye Hook. 1841

References W3 Tropicos, Kew Monocot list , IPNI ; Die Orchideen Schlechter 1915; Atlas des Orchidees Cultivees Constantin 1920 drawing fide; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922; Las Orquedias de El Salvador Vol 3 Hamer 1981 drawing ok; Flora Novo-Galaciana Vol 16 McVaugh 1985; An Introdution to the Orchids of Mexico Wiard 1987 photo fide; Icones Orchidacearum I Plate 72 Hagsater & Salazar 1990 drawing fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 photo fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 44-45 pg 2763 - 2898 Brieger 2001 as Trigonidium graminifolium photo not?; Orquideas del Estado de Morelos ORQUÍDEA (MÉX.) VOLUMEN 16 NÚMERO ÚNICO enero 2002 drawing/photo fide; AOS Bulletin Vol 72 No 7 2003 photo; Orchid Species Culture: Oncidium, Bakers 2006; Oncidium Vol 1 Koniger 2004 photo/drawing; The Pictoral Encyclopedia of Oncidium Zelenko 2002; Algunas Orquideas de Mexico Tomo 1 Suarez 2013 photo fide