Hello, friends. The unusual seed pods in the arrangement gifted to me last month opened to reveal fluff similar to milkweeds. This helped me identify it as gomphocarpus physocarpa. I saved the seed, and will try growing it. I believe the monarchs can use all the help we can give them. There were also zinnias in the bouquet, & what I believe are dahlias, which I've not grown before. I saved the seeds of those too. I didn't know until this blogger posted about it a few years ago that you could save seed from zinnia flowers in bouquets. Until then, I'd only saved seed from flowers that had dried on the plant. How wonderful to get a local bouquet with lots of seed to save too. A gift that keeps on giving :o).