I have no idea what kind of pond lily this is, but this is it without the lovely ivory petals. I'm expecting water to come out of it at any point! Here is a photo of it with petals: http://365project.org/darylo/didn-t-make-cut/2013-06-16
If anyone knows what it is, please let me know! :)
@amrita21 OMGosh! That makes total sense! In the botanical gardens, there is the "edible" section--so it makes sense that if this is edible, it would be there. The Atlanta Botanical gardens are spectacular! Can't wait to revisit Thursday. Thanks so much for cluing me in on this one! :)