Botanical name: Avicennia germinans
Common name: Black Mangrove
Family: Avicenniaceae
Mangroves are tropical plants that are adapted to loose, wet soils, salt water, and being periodically submerged by tides. Great for aquariums and ponds. See Article about mangroves.
Link to this plant:
https://toptropicals.com/catalog/uid/avicennia_germinans.htm