1 Research Article Physiological and morphological traits of Austroeupatorium inulifolium under varying resource availability AUTHORS: I.P.K. Piyasinghe 1 , S. Madawala 2* and J. Gunatilleke 2 1 Postgraduate Institute of Science, University of Peradeniya, Peradeniya, KY 20400, Sri Lanka 2 Department of Botany, Faculty of Science, University of Peradeniya, Peradeniya, KY 20400, Sri Lanka *Author for correspondence: Department of Botany, Faculty of Science, University of Peradeniya, Peradeniya, KY 20400, Sri Lanka; e-mail: sumedha.madawala@gmail.com