Dendrobium discolor Lindley 1841 SECTION Spatulata

Yellow Color Variety Photo courtesy of Jay Pfahl

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Common Name The 2 Different Color Dendrobium - Moresby Gold - Rigo Twist - Bensbach Yellow [All in PNG] - The Golden Orchid - The Brown Antler 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 a year round bloomer, 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 recieve ample water from spring until autumn and then need a distinct dryer rest if in pots and some mistings if mounted with exposed roots, but in either case never allow the plant to dry out completly. 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 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 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 ; The Orchidaceae of German New Guinea Schlechter 1985; Orchid Species Culture; Dendrobium Bakers 1996; Flora Malesiana Orchids of New Guinea Vol II Shuiteman and de Vogel 2002; The Dendrobiums H. P. Wood 2006; Native Orchids of Australia Jones 2006 as Durabaculum fuscum; Native Orchids of Australia Jones 2006 as Durabaculum undulatum; Native Orchids of Australia Jones 2006 as Durabaculum undulatum var broomfeildii