 There are also abundant lianas (vines) as well as numerous herbs, including the Madagascar vanilla ("Vanilla madagascariensis", whose Malagasy name is vahimatso).The dry forest verges on mangrove swamps in the vicinity of several coastal estuaries at the western verge of the Anjajavy Forest, where small streams discharge into the Indian Ocean.The Anjajavy's Protected Area and its surroundings include a geological phenomena of rare beauty