I did a course on this with Paul Kirkly some years ago but while I have time at the moment , I wanted to brush up on my skills now I’m in an area with more introduced species.

Identify trees by their bark

Conifers

Leaf, Bark and Fruit

Common British

Winter

Autumn

Spring

From a distance

By buds alternate

Opposing

Cheat Sheet

Free Online Course

https://woodland-classroom.teachable.com/p/kickstart-your-tree-id-skills

PDF

https://www.uwsp.edu/wp-content/uploads/2023/11/leaf-winter-tree-id-key.pdf