Abstract:A new diterpenoid, lushanrudescensin D,which is a minor component,was isolated from the leaves of Rabdosina rubescens Hara f. lu-shanensis Gao et Li(Labiatae) and its tructure was established as ent-2α,6β,11β-trihydroxy-3α-acetoxy-16pkauren-15-one from spectral and chemical evidence.