Included here are the tropical parts of Laos and northern Vietnam (including northern Annam).
Of the endemic and near endemic vascular plants so far recorded there are about 576 species in 317 genera and 107 families. There are 3 endemic genera (marked red) but no endemic families.
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Campbell, D. G. & Hammond, H. D. 1989. Floristic Inventory of Tropical Countries. The New York Botanical Garden.
Vidal, J. E. 1997. Paysages vegetaux et Plantes de la Peninsule indochinoise. Karthala and Agency of Francophony, Paris.
Werger, M. J. A., Nghia, N. H. & Zuidema, P. A. 1967. Demography of threatened tree species in Vietnam. Plant Ecology and Plant Science Group, Utrecht University, Tropenbos International and the Forest Science institute of Vietnam.