Part of R. Good's (1974, The Geography of the Flowering Plants) Palaeotropical floral kingdom, which lies within the Indo-Malaysian subkingdom. Floristically it is a poorly documented region, transitional between the rich floras of China to the north and Malaysia to the south. There are relatively few endemic genera (see endemism), probably around 250, though the proportion of endemic species is thought to be high. This region is very likely the source of such important crop plants as rice, tea, and citrus fruit. See also floral province; floristic region.
Subjects: Plant Sciences and Forestry — Ecology and Conservation.