Thursday, September 15, 2022

2022 Acorn Watch: Burr Oak (Quercus macrocarpa)



The burr oak (Quercus macrocarpa) is losing its acorns this week. While they do indeed look large, they do not look particularly ripe. So did the tree freely drop its acorns, or was it pressured to do so, or were squirrels to blame?


Here we have a lot of losses. These acorns were all found on the ground under the tree.


These acorns are quite strange and beautiful; it's a shame to see that they've fallen. The acorn pictured center certainly doesn't look ripe, as it is still green. Would the others germinate given the right conditions? All caps are firmly attached.


It's true that we can see additional acorns still attached to the tree. However, they are going fast. This photograph was taken on Sunday. It is now Thursday, and this acorn is already gone.


Squirrels were indeed seen in the tree canopy, chewing on something; exactly what, we cannot say. This picture is evidence that our local arboreal rodents have been at work―gnawed acorns and their caps were found in the leaf litter.