Marfleet, Kate, and Suzanne Sharrock. “The International Plant Sentinel Network: An Update on Phase 2”. Sibbaldia: the International Journal of Botanic Garden Horticulture, no. 18 (February 21, 2020): 105–116. Accessed April 18, 2024. https://journals.rbge.org.uk/rbgesib/article/view/291.