Tree peonies native to China are a precious crop with ornamental. medicinal and edible oil properties. of which flare tree peony (Paeonia rockii) is one of the most significant germplasms in Paeonia. The development and application of expressed sequence tag-simple sequence repeat (EST-SSR) markers are very valuable for genetic and breeding applications. https://midwaysportes.shop/product-category/softballs/