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DescriptionCommon epiphyte, often growing in large clusters. Pseudobulbs 3-5 cm apart, growing from a woody rhizome. Variable in size and shape, usually ovoid or pear-shaped, yellow, 2-leaved. Inflorescence erect, up to 20cm long on a thick, swollen, rhachis. Flowers 10-16, set alternately on either side of the rhachis, essentially yellow-green but heavily mottled with purple. This species is very similar to some forms of B. scaberulum but can be distinguished by the longer dorsal sepal, which is normally erect or curved backwards; the filiform petals, which are slightly swollen at the apex; and the lesser number of flowers in the inflorescence.