Thank you all so much for your replies. They have been helpful. I've been a little too busy to think about packaging up what I have, but I've been going out every couple of days to see what is ready to harvest. I have "tons" of Swamp Milkweed. The fact that I have that plant was a surprise in and of itself, let alone all those beautiful pods. It was about two years ago when I sowed the original seeds and I forgot all about them.
I am learning what plants have seeds that are easy to collect and others, not so much. And I am so impatient waiting for the Ironweed in my prairie patch. A couple of flower heads looked ready, but when I took the seeds off, they were still purple, not brown.
Shell,
I hope the bolweevils left you some seeds. I've been checking on my native hibiscus and actually found a couple of pods that popped open. They looked good as best as could tell, so brought them in. Most are still far from ready and I really do not know what to look for other than being popped open like I saw. Are your seeds fuzzy and brown? I think they would be good, but I've never started hibiscus from seed.