Zanthoxylum ovalifolium

References

1. [1]Journal of the Arnold Arboretum. Vol. 47 — Harvard University; Cambridge, Mass. · 1966 · http://www.biodiversitylibrary.org ↩︎A treatment of the Malaysian species of Zanthoxylum, amongst other articles. It can be downloaded from the internet.
2. [2]Plant Resources of Southeast Asia — http://proseanet.org/ ↩︎Lots of information on the uses of the plants of SE Asia.
3. [3]A Manual of Indian Timbers. — Gamble. J. S. · Bishen Singh Mahendra Pal Singh · 1972 · ISBN - ↩︎First written in the 19th century, but still a classic, giving a lot of information on the uses and habitats of Indian trees. Not for the casual reader.
4. [4]Inventory of Seeds and Plants Imported. Vol. 59 — USDA Government Printing Office; Washington DC. · 1922 · http://www.biodiversitylibrary.org ↩︎Details of seeds and plants imported for trials by the United States Department of Agriculture in the second quarter of 1919, often detailing the uses of the plant and various other miscellaneous information. It can be downloaded from the Internet.