Northern Catalpa Catalpa, Northern, Catalpa speciosa Leaves for Wildlife Northern Catalpa Catalpa Speciosa Deciduous Trees Cold Stream Farm Catalpa Yale Nature Walk A Pruning Guide for the Catalpa: When, Why & How? MOOWY Came across this tree in Hudson, WI that looked like it had giant green beans growing off of it, looked it up and it's called a Northern Catalpa often known as a "