Learn to identify trees at any time of the year using characteristics such as leaf shape, buds, catkins, white flowers etc. This Website uses photos and text from the Tree Guide UK apps and the Field Guide to Trees of Britain and Europe to provide a set of Identification keys that are easily accessible online, particularly on mobile phones.  Keys are based on photographs, taken at appropriate times of the year. Many are close-ups to illustrate particular features that differentiate tree species and families. Some keys have links to full descriptions of trees. Identification may involve looking at several keys before coming to a conclusion and even then may lead to consultation of more extensive guides or internet searches before coming up with a full diagnosis.  Tree identification is a process of elimination and on this website we aim to get you started on that process. Decide which key you are interested in and click on the button below the key icon. There are  13 keys to choose from.