"Burr acorn", Prismacolor colored pencil on Stonehenge Kraft
(click to enlarge)
I recently came across a review of Philip Ball's book, Patterns In Nature: Why the Natural World Looks the Way it Does, and I knew I had to find it. It's a pricey volume, so I found a pristine, new Publisher's Weekly called this book "the most beautiful book of 2016", and I couldn't agree more.
The acorn in this drawing is from the Burr Oak. We were visiting Texas for Christmas, and my daughter brought a handful of these into the house one morning. (Everything is, indeed, bigger in Texas!)