Witt, A. (2019) “Distribution of invasive alien Tithonia (Asteraceae) species in eastern and southern Africa and the socio-ecological impacts of T. diversifolia in Zambia”, African Biodiversity & Conservation, 49(1). Available at: https://www.abcjournal.org/index.php/abc/article/view/24 (Accessed: 9 June 2026).