Lathyrus is a genus for all gardeners, from the dainty woodland species of spring to the spectacular summer sweet peas. This book covers them all, with 150 species, more than 500 fully illustrated cultivars and a checklist of 1,200 plant names. It is a book to treasure that skillfully marries the botany, ecology, classification and wild distribution of these plants with the breeding and domestication that has further added to their diversity.