Seed pods. The brown one is ready for harvest.
Common name: Trumpet Vine
Family: Bignoniaceae
Genus: Campsis
Species radicans
Hmmm. Dave (or anybody?) we've received a message at the helpdesk that C. radicans does not produce seed pods like this. It's been several years (and several houses) since I had one growing in my garden, so I don't recall, but I thought they did have some kind of seed pod. However, the question has been raised, so....can anyone confirm or deny?
Thanks!
This site agrees:
http://theseedsite.co.uk/db5.html
They don't have a picture, but they say: "Seeds are flat, brown, winged. Many seeds in a pod."
Dave