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Lipophilic extracts from flowers, leaves, and roots of Lamiophlomis rotata (Benth.) were analyzed using GC-MS. A total of 67 compounds were identified.

Hydrodistilled leaf oils of Pistacia chinensis Bunge from five locations in China were analyzed using GC/MS. A total of 58 compounds was identified in the oils, and a relatively high variation in their contents was found. The major compounds include β-phellandrene (0.54–53.86%), α-pinene (4.74–54.44%), β-pinene (0.49–42.90%), caryophyllene (5.64–20.01%), cis-ocimene (tr−43.93%), eudesmadiene (0–15.06%), and camphene (tr−20.57%). Cluster analysis classified the leaf oils into two chemotypes: one rich in α-pinene and β-pinene, and the other rich in β-phellandrene.

The chemical constituents of leaf oils of Elephantopus scaber L. from 12 locations in Southern China, including three provinces and Hong Kong, were investigated using GC/MS. A total of 24 compounds were detected, of which 20 were identified by their mass spectra fragmentation patterns. The major compounds include hexadecanoic acid (8.19–39.22%), octadecadienoic acid (trace - 29.22%), five alkane homologues, i.e., n-tetradecane (1.19–5.26%), n-pentadecane (3.22–12.05%), n-hexadecane (2.38–16.26%), n-heptadecane (2.48–15.32%), and n-octadecane (1.39–9.59%), as well as tetramethylhexadecenol (2.06–4.31%). Hierarchical cluster analysis classified the leaf oils into two groups. Two main chemotypes of leaf oils in E. scaber were thus identified, one rich in hexadecanoic acid and octadecadienoic acid, and the other rich in the five alkane homologues.

The chemical composition of a hydrodistilled oil of Rhodiola quadrifida (Pall.) Fisch. et Mey. growing wild in Xinjiang Uygur Autonomous Region, China was analyzed by GC/MS. Twenty-three constituents were identified. The major components of the oil were hexadecanoic acid (45.39%), 9,12-octadecadienoic acid (33.38%), 9-hexadecenoic acid (3.08%), myristic acid (1.95%), a-terpineol (1.74%), and octadecanoic acid (1.07%).