Khakhulina N. N. RussiaSaratovSaratov State Medical University, Bolshaya Kazachia st., 112 Saratov, 410012polukonovanv@yandex.ru Author's articles Phytocenoses Gratíola officinális L., productivity and its inventories of raw materials in the islands Chardymskogo r. Volga Saratov region