Putative hepatotoxic neoclerodane diterpenoids from Teucrium species.

Fourteen neo-clerodane diterpenoids have been isolated from the acetone extract of the aerial parts of four species of Teucrium (T.alpestre, T. cuneifolium, T. divarication subsp. villosum, and T. flavum subsp. hellenicum) not previously studied chemically.

Terpenoids from Teucrium montanus subsp. pannonicum.

Clerosterol and clerosteryl acylglucosides were identified as the most abundant steroids of the aerial parts of Teucrium montanum L. subsp. pannonicum (Kern.) S. Pawl. Other constituents isolated were the neo-clerodane diterpenes auropolin and montanin H, and widespread triterpenes.