My favorite ID question is when somebody brings in a sprig that has obviously been dead for a week, brown crunchy leaves etc. Last time this happened, and the person said "what is this?" I was tired and cheeky enough to smile and say "Dead". Then I pleasantly explained that it's hard to tell what the leaves looked like: size, shape, color, shiny or dull etc. if they are dead . . but Really??
Or people who want to know the names of all their weeds - "but it might be something I want to keep". "If you like it, keep it. It's not a weed then." "but it's taking over my whole yard . . . " Then you need to pull it out and not worry about it.
