Well, as only one person attempted my quiz question the other day, I thought I would try a slightly easier one. I have just seen this rather interesting flower head emerging from a ‘pod’ in an Open Garden this afternoon. The ‘pod’ appears to be formed by a pair of terminal leaves.
I have to confess that I had never seen it before and was intrigued. I had to ask the owner what it was. I was amazed at the answer.
I am looking forward to your suggestions!
Davids Garden Diary 
I think it is Paris quadriflolia – something I have been after. I thought I had bought it, it was labelled so, but turned out to be a lily!
Hi Helen
Close, but not correct I’m afraid. I admit it fooled me completely and had to ask the owner. I was totally surprised at the answer! It is an unusual variety of a common species.
Have a great time in San Francisco at the Garden Blogger’s Fling. I look forward to the posting on your return!
Best wishes
David
I think the plant could be a Zinnia about to flower, although it does appear early for a Zinnia.