Have you had indian food and noticed (besides all the spices) a tangy, sour flavor? That, in all probability, is that of the tamarind. The tamarind is widely used in Indian cusine. Surprisingly though it is not native to India, but is from tropical Africa.
Here are the pods, I saw many on the tree and quite a few on the ground below as well:
This post is part of the "Trees of the Tropics" series and has been crossposted from Trees, plants and more.