The predominant plant community is semi-evergreen rain forest, which covers the vast majority of the ecoregion's intact area, a total of 36% of the ecoregion.
The semi-evergreen rain forest is dominated by trees of the dipterocarp family, including Dipterocarpus alatus, D. turbinatus, D. griffithii, Parashorea stellata, Hopea odorata, Shorea burmanica, and Anisoptera scaphula.