What is this plant?

Have this tree growing on my property. Don't know what it is. The pods have seeds and have kind of a citrus fragrance.
Am in central Texas. Thoughts?
plant photo

Looks like black walnut to me.

http://tree-species.blogspot.com/2009/07/eastern-black-walnut-juglans-nigra.html

Thanks, sure does!

We have a black walnut tree; and, I agree that is what you have. They do have an odd pungent smell; not quite citrus. Black walnut has a lot of uses medicinally, more to harvest than just the nuts.

Black Walnut is one of my favorite trees. If you get under one and look up the leaves make these concentric patterns like jagged circles.

The nuts are hard to crack but worth it for the distinct flavor of the meats.

There are a number of different dyes made with this tree also.
(If you cut open the green outer hull on the nuts and get some juice on your hands, there may be a stain for days later.)

The Black Walnut puts the substance Juglone into your soil which is poison to many plants. I am constantly killing those trees to keep them away from my garden. I have one near my blueberry plants which I will be cutting down very soon.

Black walnut shells can be used to dye fabrics a dark grey colour. Soak in water with the fabric. Set with vinegar.

Some of them are coming close to harvesting. Squirrels have been getting some of them.
So anyone have ideas for plants that would thrive underneath black walnut trees and not be affected by the juglone? Especially interested in edible perennials that would grow well underneath in partial to full sun underneath. Is an area that I want to make use of if possible.