One more image on the seemless white background, and with a little pea for the scale. I picked up this seedpod with a large seed in the rainforest walk to the Mt. Cougal on the border of QLD and NSW (Australia). I could not spot the plant it felt from, but I believe it is Callerya megasperma - tall woody climber. It's called megasperma for its huge seeds, I believe, and it has common name "Native Wisteria" for its stunning purple flowers, I've never seen yet, but you can see it in Flickr - IDENTIFYING AUSTRALIAN RAINFOREST PLANTS group - Callerya megasperma PlantNet Info I hope eventually I will manage to grow it in my garden... 8 years later: New name: Austrocallerya megasperma