A plant genus of the family Acanthaceae. Members contain NAPHTHOQUINONES. Black mangroves (common name for the genus) are distinguished from other mangroves by their spike-like aerial roots called pneumatophores that project from the soil or water surrounding the plants.

Synonyms: Avicennia marina, txid41377, Mangrove, Grey, Grey Mangrove, Avicennia, Avicennia marinas, txid82927, Black Mangroves, Mangroves, Grey, marinas, Avicennia, Mangrove, Black, Grey Mangroves, Avicennias, marina, Avicennia, Black Mangrove, Mangroves, Black