In many places at the ocean edge as well as forest interior, several tree species are capable of taking root directly in the tsingy rocks. Several species of baobab and tamarind are among the tallest species forming the canopy. Considering the lower precipitation rates on the west coast (about 1,300 mm per annum at Anjajavy Forest), the vegetation is surprisingly verdant in the beginning of the dry season, but eventually will become mostly leafless by late winter. The forest understory is moderately dense but not impenetrable. Nor is the understory heavily thorned in most locations.