It was a scorching day and, in the absence of water to play in, the dogs found long grass to cool them off.
The Wikipedia entry says...
Great Mullein has been used since ancient times as a remedy for skin, throat and breathing ailments. It has long had a medicinal reputation, especially as an astringent and emollient, as it contains mucilage, several saponins, coumarin and glycosides. Dioscorides recommended it for diseases of the lung and it is now widely available in health and herbal stores. Non-medical uses have included dyeing and making torches.
So now we know where to go next time we have a cough! Hugh has given us one of these plants as a gift and we're hoping to harvest plenty of seeds from it. They only grow where the seeds can germinate on bare ground and so an old railway track suits them very well.
When we'd had enough of the baking heat of the open country, we retreated to the cooling depths of the woodland and enjoyed a little peace in the company of trees.