杜鹃兰（学名：Cremastra appendiculata）为兰科杜鹃兰属下的一个种。

Cremastra appendiculata is an orchid species in the genus Cremastra. It is the type species of its genus.

There two subspecies:

5,7-Dihydroxy-3-(3-hydroxy-4-methoxybenzyl)-chroman-4-one, a homoisoflavanone extracted from C. appendiculata, has anti-angiogenic activities and inhibits UVB-induced skin inflammation through reduced cyclooxygenase-2 expression and NF-?B nuclear localization.