I had learned about these in the days of yore. Was doing gardening and found a small specimen growing at the base of my tree. Apparently they LOVE rotting wood…whelp

There is a willow grows aslant a brook, That shows his hoar leaves in the glassy stream. There with fantastic garlands did she come Of crow-flowers, nettles, daisies, and long purples That liberal shepherds give a grosser name, But our cold maids do dead men’s fingers call them

Look more like dead lady fingers to me.