This is a tumeric ginger from Thailand. I observed 2 main differences between the thai variety and local variety. Firstly, the local tumeric rhizome is thicker whereas the thai variety has rhizome of smaller diameter (they are equally bright orange in color). The local variety produces smaller plant whereas the thai variety has longer and bigger leaves. These are just my observations from the limited number of plants i have.
A must-have in any spice garden cos the leaves impart a very spicy flavour to your chicken curry. Just add 2 leaves (slightly crushed) and your chicken curry is instantly transformed. Some people are not aware that the leaves are used in many curry dishes in this region, not just roots. Not to mention that the flowers are truly beautiful as well.