My wife's two orange flower milkweed plants (Asclepias Tuberosa) were very productive and put out about 30 seed pods. Each pod contains about 50 seeds. I'm going to sow some, but not 1,500 seeds, I don't need that many. Maybe I'll toss some to the wind out in the country.
These plants were the most popular with the Monarch caterpillars this year, over half the caterpillars we had were on these two plants.
It's actually kind of common around here, but maybe not around your parts.
If anyone is interested in some let me know. I'll PM you my address, you send me a SASE, and I'll get you a pods worth of seeds. They need stratification, so put them 1/4 inch under the soil when you get them and wait until Spring. They're perennials, and they're tuberous, so you can thin them out, move them around, or give away as needed. Plus, you will help the threatened Monarch Butterfly.
These seeds are from me personally, not the seed bank, so they will not count as a request.
Let me know.