Tree Shaped Tombstones - The Grave of Rambo?

Seen in a small cemetery behind a Lutheran church in rural western Wisconsin.

But on closer inspection the name on this "wrap around" inscription is actually GRAMBO.  This is an atypical "tree" made of a soft white stone that is not aging well.  The square configuration is often seen in later monuments, note the 1919 date of death.

It's really an odd looking thing, notice the alligator skin bark and the profusion of chopped off limbs.