Salsify – Oyster Plant

This plant appeared in my backyard one spring. When I was weeding, I noticed a leaf that had a clear center vein running through it and let it grow to see what it was. It was this Salsify. This year it's grown to a small patch of them. I've read that in the fall I can try digging up the root and cooking it, but it must be cleaned and peeled first.

These blooms only last a little while  a day or so, and close up at night.