I was going to post this on the trade page, but the posts are so old! I hope it's ok to mention here, I'm looking for seeds/plants for wildlife in coastal VA. Check my list, flower buds, thanks:)
I have Asclepias verticillata, Asclepias tuberosa, gonolobus...
Always interested in new milkweeds, your "hairy balls" sounds interesting, as does your e. paradoxa.
Here is a link that might be useful: Milkweed and Monarch butterflies