The medical herbs of the dog.

When the condition of the stomach gets bad, our dog looks for medical herbs by himself and eats it. A certain specific weed is his preferential aim, but he can look for it only on his promenade. When he is in the garden of the house, he substitutes it in the leaf of the bamboo grass. He eats weeds not because he hopes medical efficacy but because he demands fiber as a laxative.