These are pods from a Honey Locust tree outside my kitchen window. This is known as a bumper crop, highly undesirable (to me) when it comes to pods. I guess I should count myself lucky that this isn't a native variety which has wicked thorns as an added bonus. An arborist told me 20 years ago that this tree was dying. I think he was wrong about that though it did develop a huge gall at the base of the trunk which just gives the squirrels a leg up. I've read that Honey Locust are short-lived trees, only attaining an age of about 125 years. Maybe that's what the tree-man was talking about.
At over 60 feet tall and about 50 years old, it has good years and bad years for pods. A good year being one with no pods. There was an article in the paper the other day explaining why it varies from year to year, something about perfect seeds and imperfect seeds. I read it three times and still didn't understand it. But the bottom line is these pods are going to turn brown and crispy and fall off the tree. They start coming down in autumn and they continue all winter. During high winds they'll strike my skylight like little kamikaze bombers until it sounds like I'm under attack. Good thing I'm not fanatical about a tidy yard or I'd drive myself crazy cleaning up after this tree.
Not to mention the miniscule leaves. Here's the promo on those: "In autumn, the small leaflets filter into the grass as they fall, requiring little raking." Right, unless you have a 20 x 20 foot concrete patio a few feet away, and where the first September snow makes them stick like glue. But they're a nice fern-type shape, and a million years from now they'll have made great leaf fossil imprints.