Nettle 
(Urtica dioica)

     This plant has such a reputation as a weed that its valuable nutritional and medicinal benefits are often overlooked. Iron, calcium and potassium are contained especially richly in nettles. As a rich source of Vitamin C, nettle is also of positive immune benefit and this also aids the absorption of its iron content. It is a powerful tonic and galactogogue. It is valuable as a daily nutritional supplement in lactating mares, laminitic ponies, arthritic horses and in cases of anemia or poor condition.