Yerba mate

Our church provides coffee, tea, doughnuts and bagels, but what do you do if you want something else? One of the guys brought along a thermos of yerba mate, which is popular in parts of South America--and at least one coffee shop here, which is where he'd discovered it. I'd never had it before, so I gave it a try. It tastes more or less like green tea, maybe with a little more grassy flavor.