Dendrobium discolor Lindley 1841 SECTION Spatulata Photo by Jay Pfahl

D discolor var broomfieldii Photo by Dr Clair Russel Ossian

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Common Name The 2 Different Color Dendrobium - In Papua New Guinea Moresby Gold - Rigo Twist - Bensbach Yellow In Australia - The Golden Antler Orchid - The Brown Antler Orchid - The Canary Orchid

Flower Size To 3" [to 7.5 cm]

The largest of the Australian Dendrobium, it has 3 varieties with 1 being extremely variable in size and color, with few to numerous, cylindrical stems that are leafy in the upper two thirds and carries distichous, ovate to elliptic, leathery, obtuse leaves that can bloom at any time of the year, with the maximum occuring in the spring on an axillary, arched, to 2' [to 60 cm] long, densely 10 to 80, fragrant flowered raceme arising from the upper portion of an old cane as the new growth arises, which is found in Queensland Australia and New Guinea and grows warm to hot as an epiphyte, as well as a lithophyte, directly on the coast in mangroves or behind dunes, where they can have salt spray as well as on cliffs and rock faces up to an altitude of 550 meters.

They receive ample water from spring until autumn and then need a distinct dryer rest in pots and some mistings if mounted with exposed roots, but in either case never allow the plant to dry out completely. This plant if not blooming needs more light. In nature it always grows in exposed high light conditions.

Synonyms Callista undulatum [R. Br.] Kuntze 1891; Dendrobium arachnanthe Kraenzl. 1910; Dendrobium broomfeildii [Fitz.]Fitzgerald 1888; Dendrobium discolor f. broomfieldii (Fitzg.) Dockrill 1964; Dendrobium discolor subsp. incurvata Liddle & P.I.Forst. 1990; Dendrobium discolor var. broomfieldii (Fitzg.) M.A.Clem. & D.L.Jones 1989; Dendrobium discolor var. fimbrilabium (Rchb.f.) Dockrill 1964; Dendrobium discolor var. fuscum (Fitzg.) Dockrill 1964; Dendrobium elobatum Rupp 1953; Dendrobium fuscum Fitzg. 1879; Dendrobium undulans Bakh.f. 1963; Dendrobium undulatum R. Brown 1810; Dendrobium undulatum var. albertisianum F.Muell. 1875; Dendrobium undulatum R. Br. var broomfeildii Fitz. 1888; Dendrobium undulatum R. Br. var carterae 1911; Dendrobium undulatum var. fimbrilabium Rchb.f. 1878; Durabaculum albertisiana (F.Muell.) M.A.Clem. & D.L.Jones 2002; Durabaculum arachnanthe (Kraenzl.) M.A.Clem. & D.L.Jones 2002; Durabaculum fimbrilabium (Rchb.f.) M.A.Clem. & D.L.Jones 2002; Durabaculum fuscum (Fitzg.) M.A.Clem. & D.L.Jones 2002; Durabaculum undulatum M.A.Clem. & D.L.Jones 2002; Durabaculum undulatum var broomfieldii M.A.Clem. & D.L.Jones 2002

References W3 Tropicos, Kew Monocot list , IPNI ; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910 as D arachnanthe; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910 as D undulatum; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910 as D undulatum var fimbrilabium; Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910 as D undulatum var broomfieldii; The Orchidaceae of German New Guinea Schlechter 1914/85; Die Orchideen Schlechter 1915 as Dendrobium undulatum; Die Orchideen 2 Auflage Schlechter 1927 as D undulatum; Flora of Malaya Vol 1 Orchids Holttum 1953 as D undulatum drawings fide; AOS Bulletin Vol 31 #6 1962 as D undulatum photo fide; Encyclopedia of Cultivated Orchids Hawkes 1965; AOS Bulletin Vol 35 No 4 1966; AOS Bulletin Vol 37 No 8 1968 sa D undulatum photo good; AOS Bulletin Vol 38 No 5 1969 stamp; Orchids of Australia Nicholls 1969 drawing fide; The Orchids of Papua New Guinea An Introduction Millar 1978 photos fide; Orchids of Asia Soon 1980; Die Orchideen lieferung 11/12 Schlechter/Brieger 1981; AOS Bulletin Vol 50 No 10 1981 as D undulatum photo fide; AOS Bulletin Vol 51 No 3 1982 photo fide; AOS Bulletin Vol 51 No 3 1982 as D discolor var albertisii photo fide; AOS Bulletin Vol 51 No 3 1982 as D discolor var broofieldii photo fide; AOS Bulletin Vol 51 No 3 1982 as D discolor ver fuscum photo fide; AOS Bulletin Vol 51 No 3 1982 as D discolor var gracile photo fide; AOS Bulletin Vol 51 No 3 1982 as D discolor var australiense photo fide; The Antelope Dendrobiums Cribb 1985 photo fide/drawing fide; Dendrobium Orchids of Australia Upton 1989 drawing/photo fide; Dendrobium Orchids of Australia Upton 1989 as D discolor var discolor frma broomfieldii; Dendrobium Orchids of Australia Upton 1989 as D discolor var fimbrilabium; Dendrobium Orchids of Australia Upton 1989 as D discolor var fuscum; A Guide to Orchids of the World Hodgson, Paine & Anderson 1991 Photo fide; A Guide to Orchids of the World Hodgson, Paine & Anderson 1991 as D discolor var broomfieldii Photo ok; Orchid Digest Vol 56 No 3 1992 photo fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Laurent 1992 photo fide; The Illustrated Encyclopedia of Orchids Pridgeon 1992 photo fide; Lowland Orchids of of Papua New Guinea Peter O'Byrne 1994 drawing/photo fide; Manual of Orchids Stewart 1995; Orchid Species Culture; Dendrobium Bakers 1996; Orchid Digest Vol 61 #2 1997 photo fide; Orchid Australia Vol 11 No 5 1999 photo; Orchids of Papua New Guinea Millar 1999 photo fide; Dendrobium and its Relatives Lavarack, Harris and Stocker 2000 photo fide; Lindleyana Vol 17 No 1 2002 as D arachnanthe; Lindleyana Vol 17 No 1 2002; Botanica's Orchids 2002 photo fide; Flora Malesiana Orchids of New Guinea Vol II Shuiteman and de Vogel 2002; The Dendrobiums H. P. Wood 2006 photo good; Flora's Orchids Nash & La Croix 2005 photo fide; The Dendrobiums H. P. Wood 2006 as D discolor var broomfieldii photo good; Native Orchids of Australia Jones 2006 as Durabaculum fuscum photo good; Native Orchids of Australia Jones 2006 as Durabaculum undulatum; Native Orchids of Australia Jones 2006 as Durabaculum undulatum var broomfeildii; A Guide to the Dendrobium of New Guinea Schuiteman 2013 photo fide; Genera Orchidacearum Vol 6 Epidendrodeae Part 3 Pridgeon, Cribb, Chase and Rasmussen 2014; Genera Orchidacearum Vol 6 Epidendrodeae Part 3 Pridgeon, Cribb, Chase and Rasmussen 2014 as D undulatum

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