Burls on tree trunks

I think these are several different trees.  But I was drawn to taking a few close ups of how these trees created these growths, then went on to continue growing to full size.  Amazing.

A burl is defined as...

a tree growth in which the grain has grown in a deformed manner. It is commonly found in the form of a rounded outgrowth on a tree trunk or branch that is filled with small knots from dormant buds. Source: Wikipedia

Burs on a tree trunk in Norfolk County, England (Wikipedia)

Today's Quote:

One way to open your eyes is to ask yourself, "What if I had never seen this before? What if I knew i would never see it again?"

Rachel Carson