This is a 2004 reprint by the Field Studies Council of the title originally published by Cambridge University Press. An essential reference for field botanists, ecologists and naturalists. This reprint is now a third larger than its predecessors and has been revised.
From the original publisher's announcement:
"This user-friendly key provides an easy route to the accurate naming of flowers, trees, grasses, sedges, rushes and ferns in the British Isles. No expert botanical knowledge is expected and with a little practice the key can quickly be mastered.
The key has its origins in courses run by the author where a simple field key was required. It is not a descriptive flora, but is intended for everyone who would like to know the names of flowers but who are discouraged by more sophisticated and wordy floras."