Just like any other dumbcane species - this one have all the features except for the coloration on it.
The leaves are more thicker and firm. It appears the foliage extends all the way to the stem and the midrib too is thicker too in comparison to other varieties.
Chances are this could be a hybrid dwarf version of it cultivated for ornament plants.
I found this plant planted by the roadside and took the pictures as these are very showy and evident in comparison the one in my garden - too small and unrevealing.
How to Care & Cultivate Dumbcane Plant:
Dumbcane - Dieffenbachia - Best Indoor Plants