Dendrobium bigibbum Var. bigibbum
Found in Queensland Australia and Papua and New Guinea [?] as a medium to large sized, hot growing epiphytic or lithophytic species that grows in semi-arid, low elevations of sea level to 400 meters, in high light situations with cylindrical, narrow, tapering slightly towards both ends, green or reddish purple stems carrying 3 to 12, ovate or lanceolate, acute leaves held in the apical half and can bloom in the mid summer through winter on an axillary, to 12" [to 30 cm], arching raceme with 2 to 20, large, long lasting flowers that arise from the nodes near the apex of the leafy or leafless canes if given a moderate winter rest and not resuming water until the new growths are 2 to 3" tall.
This species is the floral emblem of Queensland and grows in semi-arid areas.