Rosa roxburghii

Rosa roxburghii (burr rose, chestnut rose, chinquapin rose, or cili), is a species of flowering plant in the family Rosaceae, native to the eastern Himalayas, Tibet, and central and southern China. In the wild, it is found in thickets, mountain forests, on slopes, and alongside streams, typically 500 to 1,400 m (1,600 to 4,600 ft) above sea level. A diffuse shrub capable of reaching 8 m (26 ft) but usually shorter, it is available from commercial suppliers. In China, it is cultivated for its vitamin C-rich hips on 170,000 ha (420,000 acres), mostly in Guizhou. It was dedicated to William Roxburgh, a Scottish physician and botanist who was director of the Calcutta Botanical Garden. Three forms have been recognized: Rosa roxburghii f. roxburghii, which has double or semi-double, reddish or pink flowers 5–6 cm (2.0–2.4 in) in diametre, Rosa roxburghii f. normalis Rehder & E. H. Wilson (in Sargent, Pl. Wilson. 2: 318. 1915), which has simple, pink flowers 4–6 cm (1.6–2.4 in) in diametre an......read more on Wikipedia.