Flowers are clustered on branches, arranged in multiple heads, double petals, about 3 cm in diameter, red, pink and yellow in color, and can bloom all year round under suitable conditions. Flowers and peanuts are solitary or clustered at the top of the stem. There are single petals, compound petals (semi-double petals) and double petals, with rich colors and diverse flower shapes. Rose fruit is spherical or pear-shaped, green before ripening and orange after ripening. Contains 5- 13 achenes (seeds). The outer layer of the seed rose is the peel, the peel is the inner and outer layer, and the outer layer is the bone layer, which is very hard; The inner layer is a fiber layer, and the fibers are interwoven vertically and horizontally, which is very tough. The seed coat is a thin film that tightly wraps the embryo. There is a certain gap between pericarp and testa. Leaves alternate, with odd pinnate compound leaves; 3-7 leaflets, ovate or oblong; The leaf margin is serrated, and most varieties have smooth and shiny leaves (some varieties are rough and dull). Most varieties are purplish red in the early stage of leaf development, and then gradually turn green. The first-grade stem of stem rose is purplish red, the tender stem is green, and the old stem is grayish brown. There are sharp and hard thorns on the stem, and the density of thorns varies with varieties. The root morphology of Rosa rugosa is closely related to the propagation mode, with obvious main roots and strong lateral roots. The seedlings propagated by cutting only have lateral roots, the main roots are slippery, the number of lateral roots is small, and the viability is poor.