I offer heartiest congratulations to GrumpyBloke this week for correctly spotting this week's teaser. 
The majority seemed to think this was part of a cactus plant. 
I'd already done a cactus and although I'm not saying I won't do another in the future, I've a few more odds and ends up my sleeve yet. 
I do wonder whether Deana24 put GB on the right track when she said, "I think cactus might be a red herring... "
GB's winning answer, "Er.....is it a Thistle?" was asolutely spot on!
A thistle photographed from above.
GB... the virtual prize draw is open; please make your selection.
Yo also qualify for a cutom desktop image, if you'd like one, featuring any of my online photos. You'll need to let me have details of your screen resolution, seleced image, etc. 
just occasionally 
HA!
Congratulations to the winner
Good one eh Usky?