Along the Amazon coast, there is one of the world's greatest continuous mangrove areas. Among the most important trees here is Avicennia germinans (L.) L. (Acanthaceae). Lots to tell about these trees ... leaves with salt-excreting glands, special roots growing upwards to improve aeration, seeds which germinate immediately after the fruit fell from the tree and an astonishing variability in size from tiny to tall. #mangroves #wetlands #Amazonas #Acanthaceae #pneumatophors #trees #flowers #botany