When the pea pod dries, it unzips itself, revealing the light green peas. The ones shown here will be allowed to drop to the ground naturally, maybe to sprout or maybe to serve as food for some lucky critter.
Just a few inches away, a different kind of seed ripens. This nasturtium seed will dry into a hard, wrinkled sphere, but in this green stage it is moist inside, and quite edible. They taste great pickled, similar to capers (here’s a recipe).