Volatile constituents of Eupatorieae (Asteraceae). Compositional multivariate analysis of volatile oils from Southern Brazilian species in the subtribe Disynaphiinae Author de Souza, Tiago J. T. * & Faculdade de Farm´acia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, 90610 - 000, Porto Alegre, Brazil Author S Author Bordignon, ergio A. L. Programa de P´os-Graduaç ˜ ao em Avaliaç ˜ ao de Impactos Ambientais, Centro Universit´ario La Salle, Canoas, Brazil Author Apel, Miriam A. Author Henriques, Amelia T. text Phytochemistry 2021 112734 2021-06-30 186 1 23 http://dx.doi.org/10.1016/j.phytochem.2021.112734 journal article 10.1016/j.phytochem.2021.112734 1873-3700 8258534 The VOs of the leaves of the 0.4-to 0.6 tall shrub Disynaphia ericoides (DC.) R.M.King & H.Rob. (syn. Eupatorium ericoides ) ( King and Robinson, 1987 ; Matzenbacher, 1979 ) were similar to those obtained from Acanthostyles buniifolius , especially due to the levels of germacrene A (5.4%) and β- elemene (9.0%). In addition to these two compounds, the VOs contained β- caryophyllene (21.3%), germacrene D (8.6%), bicyclogermacrene (15.1%), and spathulenol (8.5%). No species from the Disynaphia genus, the type genus of this subtribe, have had its VO chemical composition previously described. The VOs obtained from D. ligulifolia , D. spathulata , and D. ericoides were similar to those in C. cruciata with a higher degree of oxidation when compared to Grazielia spp. and qualitatively different from R. tremula . The VOs from 13 species of Disynaphia remain to be described.