I have been wanting to ask this for a long time because it could potentially could be a good bit of grub considdering how many there are about. Although the seed inside the main helicopter is only about the size of a pea you could collect a lot in a short ammount of time... in the autumn the seeds hang grom the trees in bunches and it wouldnt take too long to pod them for a bit of a snack.
I have also noticed that the seed inside stays fresh and green even when it has been on the ground for a long time. Here you can see that the main helicopter is far from fresh but the seed insite is juicy and green.
Anyone know anything about eating them?
I found this website that explains about maple seeds but i dont know if the same applies to our common Sycamore trees... also i dont know weather to trust this scource of information. http://www.wikihow.com/Eat-Maple-Seeds
Green pea sized seeds on right of photo