using by gas chromatography mass spectrometry (GC/MS), and about 32 compounds were
identified in root oil, mainly sesquiterpenes. The characteristic constituents were Valerenol
(19.88%), beta-Vatirenene (8.61%), Longiverbenone (3.46%), Germacrene D (3.82%),
Aristolene (3.20%), Selin-6-en-4-o (2.99%) and Globulol (2.18).