We could all once tell bird’s-foot trefoil from rosebay willowherb

‘There are a great many ways of holding on to our sanity amid the vices and follies of the world,’ wrote Ronald Blythe in 2008, ‘though none better than to walk knowledgeably among our native plants.’ To many today, when the age-old connection between people and their indigenous flora is in danger of being extinguished altogether, this pronouncement may seem eccentric; but is rightly endorsed by Leif Bersweden in Where the Wildflowers Grow, which vividly describes the botanical journey through Britain and Ireland he undertook last year.

He was born in 1994 and, unusually for his generation, has been a keen amateur botanist since childhood. There was a time, not that long ago, when being taught to recognise and name our native wild flowers was part of growing up, with colourful and informative posters of plants and trees hanging on classroom walls even in urban areas. But when a new edition of the Oxford Junior Dictionary appeared in 2007, the common names of many once familiar plants – among them acorn, beech, bluebell, buttercup, dandelion and mistletoe – were omitted.