Rugosa Rose or Japanese Rose (Rosa rugosa) is a rose native to eastern Asia, in northeastern China, Japan, Korea and southeastern Siberia, where it grows on the coast, often on sand dunes. The Japanese name is (¥Ï¥Þ¥Ê¥¹(hamanasu)), meaning "shore pear". Rugosa Rose hips and autumn leafIt is a suckering shrub which develops new plants from the roots and forms dense thickets 1¨C1.50 m tall with stems densely covered in numerous short, straight thorns 3-10 mm long. The leaves are 8¨C15 cm long, pinnate with 5¨C9 leaflets, most often 7, each leaflet 3¨C4 cm long, with a distinctly corrugated (rugose, hence the species' name) surface. The flowers are pleasantly scented, dark pink to white, 6¨C9 cm across, with somewhat wrinkled petals; flowering is from summer to autumn (June to September in the northern hemisphere). The edible hips are large, 2¨C3 cm diameter, and often shorter than their diameter, not elongated like most other rose hips; in late summer and early autumn the plants often bear fruit and flowers at the same time. The leaves typically turn bright yellow before falling in autumn.