Now that the leaves have fallen the exposed seed pods of some species are evident, hanging from the branches and rattling in the breeze. Wonder which species of trees you'll see with In autumn, mature catalpa seed pods turn brown and often hang on the tree through late fall and into winter. Today's @marthastewartblog looks at some of the seeds, berries, and cones of How Good Is Catalpa Firewood? Axe Adviser Catalpa Wikipedia