The Pingyin Roguse Rose(Rosa rugosa)is a famous traditional flower in Shandong province of China.It is not only for appreciation but also of high economi-cal value and market potentiality.But so far the classification of its cultivars is in a state of confusion.Based on the systematic investigation of the existing cultivars and varieties of Pingyin Rugose Rose were de-scribed in detail,the morphological char-acters of the existing species varieties and cultivars;checked,corrected and renamed,thus putting fo...