Obituary: Dr. Peter H. Raven (1936-2026)
Peter H. Raven. Photo: Kristi Foster. Courtesy Missouri Botanical Garden
Our honorary member, evolutionary and biodiversity scientist, Peter Hamilton Raven, has passed away on 25th April 2025 at the age of 89 (https://www.missouribotanicalgarden.org/peter-raven). Raven, the director of the Missouri Botanical Garden in St. Louis (Missouri, USA) for four decades, shaped our understanding in ecosystem interactions and biodiversity. He was one of the first to recognize that the loss of biodiversity is not merely an academic issue, and he therefore dedicated himself to its preservation. To do so, Raven combined taxonomy, evolutionary biology and conservation and conveyed science to the public. As researcher he analysed the evening primrose family (Onagraceae), the coevolution between plants and butterflies, and wrote the well-known textbook Biology of Plants. In the years in St. Louis, he transformed the respected but provincial garden to a recognized global hub for research, education, horticultural display, and sustainability, with far-reaching scientific partnerships and conservation programs. The TIME magazine once described him as a “Hero for our Planet”.