Stefan, it has the broad leaves as shown in your photograph to the left, so that helps narrow it down.
Natalie, I remember mixing all the Poppy seeds you sent with the wildflower mix I bought from Wildseed Farms, but I did a poor job of keeping track of the information on all the packets.

I am intrigued by the purple eyes at the base of the petals, and with the fronds in the center. Looks like sea kelp or something.