Thanks William!
I found something fun and interesting! Van Sion is the old double daffodil frequently seen naturalized along roadsides and old home sites around here. They're not particularly pretty by today's standards of double daffodils- kinda messy looking, like it exploded
This photo is how they typically look.
Old House Gardens sells them, and described an interesting habit of Van Sion. Newly planted bulbs from a professional source will exhibit different bloom form, a defined corolla and cup, with the cup filled with petals. They go on to say that after a year or 2 in the garden they will flower with the typical double form.
A couple of years ago I divided a clump and gave them a new home in rich soil with some bone meal. 2 blooms are opening now and have the defined corolla and cup! After reading that it was possible I've really wanted to see for myself, so I'm pretty excited! When they open further I'll post photos