Article from Bean's Trees and Shrubs Hardy in the British Isles
Recommended citation 'Citronella' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/citronella/). Accessed 2024-04-26.
As pointed out in Volume IV, page 721, Citronella is the correct name for the genus long known as Villaresia. Before applying this generic name to the present species, Ruiz and Pavon had used it for some other South American plant, of uncertain identity.