Dendrobium gibsonii

Found in India, Nepal, Bhutan, Myanmar, Thailand, China and Vietnam at elevations of 650 to 1650 meters as a large sized, warm to cool growing epiphyte or lithophyte on mossy limestone cliffs with centrally swollen, tapering towards the apex, pendulous, ribbed stems carrying 6 to 10, ovate to lanceolate, acute, deciduous leaves that bloom in the spring and summer on a slightly fractiflex, nodding to pendulous, 15 to 20 cm long, loosely 6 to 15 flowered inflorescence arising on older leafless canes.

This species and D chrysanthum are similar but this species has deciduous leaves, narrower petals, sepals that are much more spreading and the lip opening is rounder.