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Orchid Species: Oncidium dayanum

Kew currently accepted name is Caucaea phalaenopsis

Oncidium dayanum is an orchid species identified by (Rchb.f.) Stacy in 1975. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Caucaea phalaenopsis.
Genus
Oncidium (Onc.)
Grex
dayanum
Parents
Species
Author
(Rchb.f.) Stacy
Year
1975
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ORIGIN: Found in Ecuador and Peru at elevations of 2300 to 3200 meters.

DESCRIPTION: Small sized, cold growing epiphyte with egg to pear-shaped, slightly laterally compressed pseudobulbs enveloped basally by several imbricating, leaf-bearing sheaths and carrying 1 to 2 apical, linear to narrowly lanceolate, slightly leathery, dorsally folded longitudinally and keeled below, acute leaves that bloom in the fall and winter on an axillary, erect to suberect, to 12 [30 cm] long, racemose to loosely paniculate, fractiflex inflorescence arising from the leaf bearing sheaths and carrying 8 to 12 showy flowers.

FLOWER SIZE: 1.2 inches [3 cm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Caucaea Cauc phalaenopsis 2001 (Linden & Rchb.f.) N.H.Williams & M.W.Chase
Add+ Oncidium Onc chimborazoense 1975 Stacy
Add+ Caucaea Cauc chimborazoensis 2001 (Stacy) N.H.Williams & M.W.Chase
Add+ Caucaea Cauc dayana 2001 (Rchb.f.) N.H.Williams & M.W.Chase
Add+ Caucaea Cauc spathulata 2001 (Lindl.) N.H.Williams & M.W.Chase
Add+ Oncidium Onc spathulatum 1975 (Lindl.) Stacy
Add+ Oncidium Onc phalaenopsis 1869 Linden & Rchb.f.
Most awarded/recent cultivars: Onc. dayanum 'Greentree' (2 awards in 1985) Cauc. phalaenopsis 'Weißkirchen' (2016) Onc. phalaenopsis 'Janet' (1975) Onc. phalaenopsis 'Chadds Ford' (1968)
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