Retiredff wrote:
David J Bockman wrote:
Try http://www.mindspring.com/~psisco/www/overframe3.html

http://www.mindspring.com/~psisco/www/5species.html

It would appear that Chinkapins burrs form in small grapelike
clusters, whereas the Japanese Chestnut burrs will form in groups of
3 or so.
Dave

For what it's worth, I believe they are showing the burrs
flattened/spread out, after they have split open to expose the nut.

Thanks

But, then again, I might be wrong about that