Do you suffer from plant blindness?

Plant knowledge is on the decline: a study of UK students found only 14% could recognise more than three species of native plants. This is a serious problem.

I was getting out of the car to meet Maria Garcia, founder of foraging school Healing Weeds, when something invertebrate flew down my shirt and jammed its anal barb deep into my tit.

"Are you alright?" Maria called.

I was not. 

While I sulked, Maria fiddled in a nearby verge, returning with a leaf resembling wrinkled salad. 

"Chew this," she said, holding o…