Holmes, Patricia, Anthony G. Rebelo, and Ulrike M. Irlich. “Invasive Potential and Management of Naturalised Ornamentals across an Urban Environmental Gradient With a Focus on Centranthus Ruber”. Bothalia, African Biodiversity & Conservation 48, no. 1 (August 16, 2018). Accessed March 29, 2024. https://abcjournal.org/index.php/BothaliaABC/article/view/82.