Bulbophyllum umbellatum

Bulbophyllum umbellatum (umbrella bulbophyllum) is a species of orchid. It is native to tropical parts of South Asia, from the west central Himalayas to Taiwan and Indo-China.

Varieties
, Plants of the World Online accepted two varieties:
 * Bulbophyllum umbellatum var. fuscescens (Hook.f.) P.K.Sarkar
 * Bulbophyllum umbellatum var. umbellatum, many synonyms including Cirrhopetalum maculosum

Cirrhopetalanthrin is a dimeric phenanthrene derivative from B. umbellatum var. umbellatum.