Dendrobium roslii (Species)
 
Found in peninsular Malaysia in primary forests on branches of trees at elevations of 200 to 300 meters.
Dendrobium roslii (Species)
Medium sized, hot growing epiphyte with descending, slender stems carrying several, deciduous, lanceolate leaves and blooms in the fall and winter on several, 3 to 6 flowered inflorescence arising on leafless stems and carrying flowers that change from lime-green to lemon yellow in 3 to 4 days after they open.

FLOWER SIZE: 2.5 cm