Eulophia nuda Lindl. 1833 SECTION Cyrtopera
Photo by © N. T. Gerald
Photo by © Lourens Grobler
Photos by Manorot Tangsaveepha Copyright ©,
Indonesian Variety Anggrek Bakong
Photo by © David Sucianto
Plant and flowers in situ in Thailand
Photos by © Ekkehard Schwadtke and Lanta Orchid Nursery and Orchid Garden Khaolak Website
Photo by © Ye Deping
Photo by © Jalal & Jayanth
SOMETIMES
Common Name The Naked Eulophia In China - Zi Hua Mei Guan Lan - In Thailand Wan Hua Khru
Flower Size 1 to 2.8” [2.5 to 7 cm]
Found in Assam India, Bangladesh, eastern Himalayas, Nepal, Sri Lanka, western Himalayas, S. China, Laos, Cambodia, Vietnam, Myanmar, Thailand, Malaysia, Java, Borneo, Lesser Sunda Islands, Moluccas, Philippines, Sulawesi, Sumatra, New Guinea, Solomon Islands, Fiji, Tonga, Vanuatu, Caroline Islands and the Mariana Islands in open grasslands and swamps, roadcuts and disturbed soils at elevations of 200 to 900 meters as a large sized, hot to warm growing terrestrial orchid with subterranean, almost round pseudobulbs enveloped basally by a few imbricate, lanceolate sheaths, carrying 3 to 4, lanceolate, plicate, acuminate, long petiolate leaves that wrap and enfold each other and narrow below into a long, grooved stalk which has below several leaf-like bracts and blooms in the spring on a to 12 to 40" [30 to 100 cm] tall, thick, fleshy, few to several [2 to 20] flowered inflorescence bearing several, ovate-elliptic, acute to acuminate, sterile bracts and has linear-lanceolate, acuminate floral bracts and carrying sometimes fragrant flowers.
This species has extremely varied flower forms through it's range.
Synonyms Cyrtopera fusca Wight 1851; Cyrtopera gardneri Thwaites 1861; Cyrtopera godefroyi Rchb.f. 1878; Cyrtopera laxiflora Gardner ex Thwaites 1861; Cyrtopera mysorensis Lind. 1859; Cyrtopera nuda (Lindl.) Rchb.f. 1872; Cyrtopera plicata Lindl. 1833; Cyrtopera regnieri Rchb.f. 1886; Cyrtopera squalida (Lindl.) Rchb.f. 1857; Cyrtopodium bicolor (Blume) Ridl. 1885; Cyrtopodium squalidum (Lindl.) Vidal 1885; Eulophia bicolor Dalzell 1851; Eulophia elata Hook.f. 1890; Eulophia bicolor Blume 1859; Eulophia bicolor var. celebica J.J.Sm. 1922; Eulophia burkei Rolfe ex Downie 1925; Eulophia celebica Blume 1859; Eulophia elata Hook.f. 1890; Eulophia elongata Blume 1859; Eulophia fusca (Wight) Blume 1859; Eulophia hildebrandii Schltr. 1919; Eulophia holochila Collett & Hemsl. 1890; Eulophia lutea Blume 1859; Eulophia macgregorii Ames 1914; Eulophia mucronata Blume 1859; Eulophia regnieri (Rchb.f.) Guillaumin 1955; Eulophia spectabilis (Dennst.) Suresh 1988; Eulophia squalida Lindl. 1841; Eulophia sumatrana Blume 1859; Geodorum pierrei Gagnep. 1932; Graphorkis bicolor (Blume) Kuntze 1891; Graphorkis elata (Hook.f.) Kuntze 1891; Graphorkis holochila (Collett & Hemsl.) Kuntze 1891; Graphorkis nuda (Lindl.) Kuntze 1891; Graphorkis squalida (Lindl.) Kuntze 1891; Graphorkis sumatrana (Blume) Kuntze 1891; Phaius steppicolus Hand.-Mazz. 1925; Semiphajus chevalieri Gagnep. 1932; Wolfia spectabilis Dennst. 1818 [Not validly published as a genus]
References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1857 as Cyrtopera squalida; Otia Botanica Hamburgensia Rchb.f 1878 as Cyrtopera godefroyi; Otia Botanica Hamburgensia Rchb.f 1878 as Cyrtopera squalida; Icones Plantarum Vol 22 Hooker 1892 as E holochila drawing good; A Century of Indian Orchids Vol 5 Hooker 1895 drawing good; A Century of Indian Orchids Vol 5 Hooker 1895 as E nuda var macrantha drawing good; A Century of Indian Orchids Vol 5 Hooker 1895 as E nuda var purpurea drawing good; A Century of Indian Orchids Vol 5 Hooker 1895 as E nuda var andersoni drawing good; Orchids of Burma Grant 1895/1995 as Cyrtopera holochila; Orchids of Burma Grant 1895/1995 as Cyrtopera nuda; Orchids of Burma Grant 1895/1995 as Cyrtopera squalida; The Orchids of Sikkim-Himalaya Part 1 King & Pantling 1898 drawing fide; Die Orchideen Von Java J.J.Sm. 1905 as E squalida; The Orchids of North-Western Himalaya Vol IX Part II Duthie 1906; Die Orchideen Von Java figuren Atlas J.J.Sm. 1908 as E squalida drawing fide; Orchidaceae of German New Guinea Schlechter 1912 as E squalida drawing fide; Die Orchideen Schlechter 1915; Die Orchideen Schlechter 1915 as E squalida; AOS Bulletin Vol 27 No 4 1958 drawing; Flora of Malaya Vol 1 Holttum 1957 as E squalida drawing fide; AOS Bulletin Vol 27 No 4 1958 drawing ok; AOS Bulletin Vol 27 No 10 1958 drawing; The Orchids of Thailand Seidenfaden & Smitinand 1961 as E burkei drawing good; The Orchids of Thailand Seidenfaden & Smitinand 1962 drawing good; The Orchids of Thailand Seidenfaden & Smitinand 1965 corrections as E burkei; The Orchids of Thailand Seidenfaden & Smitinand 1965 corrections as E nuda; Encyclopedia of Cultivated Orchids Hawkes 1965; Encyclopedia of Cultivated Orchids Hawkes 1965 as E squalida; The Orchids of Bombay Santapu & Kapadia 1966; Indian Orchids Guide to Identification and Culture Pradhan 1979 drawing fide; The Complete Writings on Philippine Orchids Vol 2 Quisumbing 1981 as E squalida drawing/photo good; A Revised Handbook to the Flora of Ceylon Vol 2 Dassanayake & Fosberg 1981 drawing fide; Opera Botanica #72 Orchid Genera in Thailand XI Cymbidiaeae Seidenfaden 1983 drawing fide; AOS Bulletin Vol 53 No 4 1984; AOS Bulletin Vol 53 No 4 1984 as E squalida; Orchidiana Philipiniana Vol 1 Valmayor 1984 as E squalida; Orchids of Arunchal Pradesh Hegde 1984; Orchids of the North-West Himalaya Deva and Naithani 1986 as E spectabilis drawing fide; Orchids of Nilgiris Joseph 1987 drawing fide; Orchids of Vanuatu Cribb & Lewis 1989; The Orchids of the Solomon Islands and Bougainville Lewis & Cribb 1991; Rudolf Schlechter Die Orchideen Band 1B lieferung 24 1457 - 1520 Brieger 1991 as E macgregorii; Rudolf Schlechter Die Orchideen Band 1B lieferung 24 1457 - 1520 Brieger 1991; Ferns and Orchids of the Mariana Islands Raulerson & Rinehart 1992 as E macgregorii photo fide; The Orchids of Penninsular Malaysia and Singapore Seidenfaden & Wood 1992 as E spectabilis drawing fide to the 1 2 photos; Orchids of Malaya Segerback 1992 as E spectabilis photo fide; Thai Orchid Species Rakpaibulsombat 1992 as E burkei photo fide; Thai Orchid Species Rakpaibulsombat 1992 photo fide; The Plants of Mount Kinabalu Vol 2 Orchids Beaman, Wood, Beaman & Beaman 1993 as E spectabilis; A Checklist of the Orchids of Borneo Wood & Cribb 1994 as E spectabilis; Identification of the Orchids [Orchidaceae Juss.] Vietnam Averyanov 1994; Identification of the Orchids [Orchidaceae Juss.] Vietnam Averyanov 1994 as E regnieri; Orchids of Borneo Vol 1 Chan, Lamb, Shim & Wood 1994 as E spectabilis drawing/photo fide; Orchids of Nagaland Deorani & Naithani 1995; The Wild Orchids of China Tsi, Chen & Mori 1997 photo fide; Native Orchids of China in Colour Singchi, Zhanhuo and Yibo 1999 as E spectabilis photo fide; Orchids of Sumatra Comber 2001 as E spectabilis photo fide; Orchids of Sarawak Beeman & Wood 2001 as E spectabilis photo fide; A Field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2001 as E spectabilis photo fide; A to Z of SE Asian Orchids O'Byrne 2001 as E spectabilis photo fide; Lindleyana Vol 17 No 1 2002 as E spectabilis; Orchids of Bhutan Pearce & Cribb 2002 as E spectabilis; Botanica's Orchids Laurel Glen 2002 as E spectabilis photo fide; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003 as E spectabilis; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 as E spectabilis photo fide; 100 Sikkim Himalayan Orchids Pradhan 2005 as E spectabilis photo fide; Australian Orchid Review Vol 71 No 4 2006 as E spectabilis photo; Flora Malesiana Orchids of New Guinea Vol III Shuiteman and de Vogel 2006 as E spectabilis; Orchids of India A Glimpse Misra 2007 as E spectabilis drawing okishhmm; Native Orchids From Gaoligongshan Mountains, China Xiaohua, Xiaodong and Xiaochun 2009 as E spectabilis photo coleection sheet; A Field Guide to the Orchids of China Singchi, Zhongjian, Yibo, Xiaohua and Zhanhuo 2009 as E spectabilis photo ok; Flora of China Vol 25 Zhengyi, Raven & Deyuan 2009 as E spectabilis; The Wild Orchids in Yunnan Xu Xiang Ye & Liu 2010 as E spectabilis photos fide to another flower; The Orchids of Mount Kinabalu Vol 2 Wood, Beaman, Lamb, Chu Lun and Beaman 2011 as E spectabilis drawing fide to 1st photo/photo ok; Wild Orchids of Penninsular Malaysia Ong, O'Byrne, Yong & Saw 2011 as E spectabilis photo fide; Philippine Native Orchid Species Cootes 2011 as E spectabilis photo fide; Orchids of Odisha Misra 2014 drawing/photo fide; Malesian Orchid Journal Vol 18 2016 as E spectabilis photo fide; AOS Bulletin Vol 86 # 8 2017 drawing fide; Lankesteriana Vol 18 [1]: 23–62 Jalal & Jayanth 2018 as E spectabilis photo fide; Orchids of Maharashtra Jalal 2018 photo Fide; Atlas of Native Orchids of China Vol 2 Jin Xiaohua, Li Jianwu and Ye Deping 2019 photo fide;
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