Template:Sykes, 1982
- Sykes, W.R. 1982: Checklist of dicotyledons naturalised in New Zealand 15. Annonales, Berberidales, Cactales, Fagales, some Geraniales, Juglandales, Laurales, Rutales, Salicales, Sapindales, Tiliales, Nyctaginaceae, and Zygophyllaceae. New Zealand journal of botany 20(4): 333-341. DOI: 10.1080/0028825X.1982.10428502