What is this seed?
 

Hi!

Could anyone please tell me what this seed is:

http://commons.wikimedia.org/wiki/Im...with_scale.jpg

I think it might be a daisy, but I don't really know. There is a hole
in the middle of the seed and I think it might be that a larger seed
pod was attached to the "parachute", perhaps. A scientific name would
be appreciated too if possible.

Thanks,

John