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Orchid Species: Oncidium bolivianense

Kew currently accepted name is Trichocentrum ascendens

Oncidium bolivianense is an orchid species identified by Oppenheim in 1916. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Trichocentrum ascendens.
Genus
Oncidium (Onc.)
Grex
bolivianense
Parents
Species
Author
Oppenheim
Year
1916
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ORIGIN: This large sized, hot to cool, pendulous growing, terete-leafed epiphyte was collected in Belize but they can be found as epiphytes with an ascending simple or branched raceme with small, successively opening flowers on trees in swamps, open mountain forests, pastures and coffee plantations at elevations of 300 to 1500 meters in all of Central America, Colombia and the West Indies.

DESCRIPTION: This large sized, hot to cool, pendulous growing, terete-leafed epiphyte was collected in Belize but they can be found as epiphytes with an ascending simple or branched raceme with small, successively opening flowers on trees in swamps, open mountain forests, pastures and coffee plantations at elevations of 300 to 1500 meters in all of Central America, Colombia and the West Indies. Please note that while the plant is pendant growing the inflorescence is basically erect to lateral so mount on treefern or wood accordingly, give bright light, high humidity and year round water with less when mature. This orchid has small inconspicuous pseudobulbs carrying a single, apical, terete, thick-fleshy, long leaf and blooms in the spring on an erect to lateral, racemose, to 6" [15 cm] long, several to many flowered, racemose inflorescence arising on a mature pseudobulb.

FLOWER SIZE: 3/4 -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Trichocentrum Trt ascendens 2001 (Lindl.) M.W.Chase & N.H.Williams
Add+ Cohniella Coh bolivianensis 2001 (Oppenheim) Senghas in F.R.R.Schlechter
Add+ Oncidium Onc subulifolium 1922 Schltr.
Add+ Cohniella Coh ascendens 1999 (Lindl.) Christenson
Add+ Oncidium Onc ascendens 1842 Lindl.
Add+ Stilifolium Stil ascendens 1997 (Lindl.) Königer & D.Pongratz
Add+ Cohnia Cohnia quekettioides 1852 Rchb.f.
Add+ Cohniella Coh quekettioides 1889 (Rchb.f.) Pfitzer in H.G.A.Engler & K.A.E.Prantl (eds.)
Most awarded/recent cultivars: Trt. ascendens 'Schanz' (2 awards from 2015 to 2018) Trt. ascendens 'Memoria Miriam Pereira' (2017) Onc. ascendens 'S.b.t' (2012) Onc. ascendens 'Conrado Ortega' (1996) Onc. ascendens 'Arp's Golddust' (1990) Onc. bolivianense 'Pat' (1984) Onc. bolivianense 'Peter Norberg' (1982) Onc. ascendens 'Toni' (1982)
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