Cym. dayanum photo by Dr. Thomas Ott

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Orchid Species: Cymbidium dayanum

(This name is currently accepted by Kew.)

Cymbidium dayanum is an orchid species identified by Rchb.f. in 1869.
Genus
Cymbidium (Cym.)
Grex
dayanum
(name currently accepted by Kew)
Parents
Species
Author
Rchb.f.
Year
1869
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ORIGIN: This medium sized, hot to cool growing epiphytic or terrestrial species occurs low down on tree trunks in evergreen lowland forests at elevations of 200 to 1800 meters and can be found in Assam India, eastern Himalayas, Sikkim, Thailand, Cambodia, China, Vietnam, Borneo, Malaysia, the Philippines, Sulawesi, Sumatra, Taiwan, Ryukyu Islands and Japan.

DESCRIPTION: This medium sized, hot to cool growing epiphytic or terrestrial species occurs low down on tree trunks in evergreen lowland forests at elevations of 200 to 1800 meters and can be found in Assam India, eastern Himalayas, Sikkim, Thailand, Cambodia, China, Vietnam, Borneo, Malaysia, the Philippines, Sulawesi, Sumatra, Taiwan, Ryukyu Islands and Japan, with indistinct, strongly compressed-ellipsoid pseudobulbs enveloped by scarious, persistent leaf bases and cataphylls and carrying 5 to 12, disitichous, narrow-linear, dark green, slightly leathery, pale green, acute to acuminate, sessile [no petiole] leaves with the articulation 1.2 to 2.4 away from the base that blooms in the summer and fall on a basal, erect to pendant, several [5 to 15] flowered, 9 [22.5 cm] long, racemose scape subtended with pink veined sheaths and triangular, acute, purplish floral bracts and carrying mostly non-fragrant flowers, and needs even year round conditions.

FLOWER SIZE: 1.6 to 2 inches [4 to 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+ Cymbidium Cym aestivum 2004 Z.J.Liu & S.C.Chen
Add+ Cymbidium Cym acutum 1896 Ridl.
Add+ Cymbidium Cym alborubens 1902 Makino
Add+ Cymbidium Cym angustifolium 1920 Ames & C.Schweinf. in O.Ames
Add+ Cymbidium Cym leachianum 1878 Rchb.f.
Add+ Cymbidium Cym poilanei 1931 Gagnep.
Add+ Cymbidium Cym pulcherrimum 1891 Sander
Add+ Cymbidium Cym simonsianum 1895 King & Pantl.
Add+ Cymbidium Cym sutepense 1925 Rolfe ex Downie
Most awarded/recent cultivars: Cym. dayanum 'Brandorff' (3 awards in 2018) Cym. dayanum 'Wössen' (2 awards in 2011) Cym. dayanum 'Variegata' (2 awards in 2008) Cym. dayanum 'Iced Dragon' (2 awards in 2006) Cym. dayanum 'Luth' (2010) Cym. dayanum 'Cheyenne' (2006) Cym. dayanum h.f. album 'Lady Elizabeth' (2005) Cym. dayanum 'Mr Wu' (2005) Cym. dayanum 'Hoosier' (2004) Cym. dayanum 'Vat's Grand Prix' (2004) Cym. dayanum 'Dark Mountain' (2003) Cym. dayanum h.v. variegatum 'El Rio Variegata' (1998) Cym. dayanum h.v. variegatum 'El Rio' (1994) Cym. dayanum 'Mt. Cuba' (1994) Cym. dayanum 'Cinnabar' (1988) Cym. simonsianum 'Planting Fields' (1972)
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