Did some searching and looks like it might be:
Bignonia capreolata L.
Crossvine
http://www.wildflower.org/gallery/result.php?id_image=31110
Appears to be native to Texas.
That's it! NICE DETECTIVE WORK!! Thank you!!
Probably inedible?
Elohi(Earth)
It appears to be a toxic plant. Dang it.
Elohi(Earth)
It looks like trumpet vine to me. The botanist told us it was toxic.