Bulbophyllum nocturnum is a fairly recently discovered orchid from New Britain, Papua New Guinea. It was described in 2011 by Dutch botanists.
It is the first known orchid that flowers only at night: the flower buds open at night and wilt the following morning.
This is one reason why this orchid, and similar orchids, are so hard to find in nature: we rarely see them in bloom.
The leaves are up to 6 cm long and 3 cm wide.
The plant produces flower stalks of only 5 mm long with a single flower. The flowers are about 2 cm long, with yellowish green sepals with a red tinge at the base, the lip is dark red and the column is yellow with a red tint. The petals of the appendices are grayish.
New Britain, Papua New Guinea
Epiphyte in rainforest at an altitude of 240-300 m.
Bulbophyllum comes from the Greek words bolbos (bulb) and phyllon (leaf).
Nocturnum: from Latin (night).
As this orchid was recently discovered, the requirements are not well known.