Jackie and I attended a tree identification workshop at Allerton Park yesterday.

Both my parents are naturalists, and my brother took some botany classes as part getting his PhD in science education, so they all know all the trees we’re likely to see in any of the places where we’ve ever lived. They routinely identify the trees for me when we’re walking. If I’d had any sense, I’d have learned all that stuff myself long ago.

Sadly, I have a lazy brain—the sort that figures that if other people will identify the trees for me, there’s no need for me to learn how to do it myself. So, I had to subject myself to this workshop to try and catch up.

It was a very well done workshop. We spent about half an hour going over basic terminology of tree characteristics—alternate versus opposite, simple versus compound, pinnate versus palmate, petioles versus petiolules—then we spent about three hours hiking through Allerton Park on the south side of the Sangamon River, before breaking for lunch. After lunch we spent another three hours hiking on the north side of the river, looking at the trees found over there.

We learned to identify maybe 30 species, with enough repetition of the more common species that we might actually be able to remember them.

It was good.

With all the time and effort I’ve been putting into fitness of late, I’ve been feeling just a little smug—I’m in so much better shape than I was nine or ten years ago. But this outing showed me that any such smugness is unjustified—everybody in our group of 20 or so, including some people older than Jackie and me, held up just fine to the rigors of five or six hours on our feet in the woods, some of it hiking off-trail. Jackie and I held up just fine too, but I was pretty tired at the end. (And managed to jam my ankle at some point, which wasn’t a problem during the event, but got sore in the night.)

It was a good reminder that endurance is a very complicated thing. Being in shape to walk briskly for 10 or 15 miles is not the same as being in shape to alternate walking and standing for the same number of hours. Adding effort in a mental dimension—trying to learn the trees, keeping an eye out for things like poison ivy, nettle, and tripping hazards—also makes things more taxing, something that’s easy to forget.

Now we need to get back to Allerton reasonably soon—before we forget everything—and see how many of those trees we can still identify.