..nut..? at a lake surrounded by texas i found a bunch of...

at a lake surrounded by texas i found a bunch of nuts that look kind of similar to walnuts but, they arent. when i cracked them open on one partially of all of them be the outline of a heart. what kind of nut is it?
Where should I initiate surrounded by planting rose...
Answers:    Sounds similar to a walnut to me. Can you give us a moment or two more info.? How big is the nut? What makes you influence they aren't walnuts?
I'm planting jalapenos. It say to separate respectively...