Members of our walking group often ask what is growing in the fields we are traipsing round. The early growth of green tops and grass-like leaves look much alike, so there is some excuse, though often even the fully grown crops are looked at blankly. It is just one more symptom of the extent to which we are divorced from the source of the food we eat. But even the most inveterate urbanite ought to be able to distinguish between wheat and barley.
Photo: Lime KIln Hill, near Beechwoods, Cambridge, July 2017