Thanks Stone! I had looked everywhere for it. It is on a one of my reguelar routes, checking fences so I will try to look for those seed pods. Mostly I leave things alone to do their thing and enjoy their beauty as it is.

Found an article with several pics of different local types: https://bwwellsassociation.wordpress.com/2016/07/02/our-central-carolina-milkvines-gonolobus-suberosus-matelea-carolinensis-and-matelea-decipiens/

Matelea caroliensis or similar matelea ( spiny pod milkweedvine) Go back in late summer and see if you can catch the pods ripening… Can be grown from wild collected seed, but will take a couple 3 years to see flowers on seedlings.