Alnus glutinosa
The arboretum was created in 1905 by Charles Flahault (1852–1935), and contains species including "Abies numidica", "Acer campestris", "Alnus glutinosa", "Fraxinus ornus", "Ginkgo biloba", "Larix" spp., "Maclura pomifera", "Populus tremulus", "Sequoiadendron", "Taxus baccata", and "Toxylon pomiferum".