I don't have a lot of experience with foraging but since we have so many dandelions this seemed like an easy way to start! They're laid out on a clean sheet to dry in the sun (it'll hit them in about an hour and stay on them just about until sunset).
It's hard to describe tastes without relation to other tastes -- I'd say it's similar to chamomile, but somewhat greener/grassier. It tastes like early spring. With a little bit of sugar it's very nice!