Friday puzzler unearthed!

Lots of good guesses this week! As many of you realized, this is a huge tree root making the best of a small tree pit.  But it’s not a Norway maple (sorry John) or a mulberry (sorry Robert), but a sweetgum (Liquidambar styraciflua) (congratulations Brian!).  (You can see the little mace-like seed pods on the ground.)  The root does resemble a bicep (“Treebeard’s elbow”) flexing to crack the concrete (aka Robert’s  Concretious blandmulsia):

Though sweetgum can be nice urban trees, their roots are quite vigorous and can lift sidewalks several inches above grade as they increase in diameter:

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Thanks for all the entries – our readers are smart and funny!

3 thoughts on “Friday puzzler unearthed!”

  1. I tried to work that into my answer, somehow, but could not come up with a clever connection. How about you, John, or anyone else?

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