The sesquiterpenes tessaric acid, 2-deoxytessaric acid, ilicic acid, 3
-oxo-4,11(13)-eudesmadien-12-oic acid and 3 beta,5 alpha-dihydroxycost
ic acid have been isolated from the aerial parts of Tessaria absinthio
ides. The structure of a new eudesmane, 3 beta,5 beta-dihydroxicostic
acid, was established by spectroscopic data. Copyright (C) 1997 Elsevi
er Science Ltd.