Invasive species from Asia, more info at:
http://plants.ifas.ufl.edu/node/31
Saw it on the stairs leading to the pool in Turks and Caicos.
Found growing in the muddy part of a pond
Stem has a maroon color
Leaves were starting to form with a reddish tint on the outside of the leaf
Stems are more widely spread
Looks almost like a small tree