The thick lip is very mobile and secretes nectar profusely and smells of rotten fruit, attracting fruit flies that aids in pollination. Large pseudobulbs with one flower to an inflorescence and held on long peduncles. Bulbophyllum angustifolium under Section Desmosanthes , with fairly large ovoid pseudobulbs Cool temperature. Flowers bright orange to red. Known from West Java only at 1000 meters.
Pollination is by flies attracted by the disgusting smell.
Extremely rare in cultivation. Thick ovate to elliptic leaves . Yellow spotted Petals with red lips. The amount of crimson spotting varies greatly according to location. Flowers have a peculiar 'animal' smell which attracts a type of hover fly.