Basic elements

An order for my wife, which launched fully in the study of wild flora. It falls to the Botanical Society of Vaucluse. Then several books consulted for two years on the plants as well as on field studies.
He remained an essential question: the basics of botany.
A former professor of SVT (the same company) shows him and advises this book. And that's really the missing link she expected.
She wanted to have the basics of plant identification. Since this afternoon, she is delighted. She will be able to fill the gaps.
Thank you.