Genus Avicennia is a group of evergreen trees and shrubs that are commonly found in coastal areas. They are also known as mangroves, and they have adapted to grow in saline conditions. Some of the synonyms for Genus Avicennia include white mangrove, grey mangrove, and black mangrove, depending on the species. These trees play an important role in protecting coastal areas from erosion and provide habitat and shelter for various species of plants and animals. Some other common names for species of Genus Avicennia include buttonwood, api-api, and piyakarayen. Understanding the different names for these trees can help in identifying and appreciating their significance in the ecosystem.