I don't think its just pregnancy brain. I grew up in a neighborhood with street names like sycamore and tamarack. I was telling some friends about the difference in raking leaves at my parent's house and our tiny little trailer yard. I didn't know what a tamarack was. So, just FYI, the first tree is a tamarack (kind of looks like a pine, huh Sussanah?), the second is a sycamore, and the last is a catalpa. Geesh ....