As you put up the Christmas decorations, have you ever wondered what a Fir tree is? Any child can draw one, but what makes it a Fir?
Lots of trees are called 'Firs', and some of them are true Firs, but others are not. That's the problem with common names, they are confusing.
In the first of a series of essays on the most popular common names, we shed some light on what it is to be a Fir.