A small to medium sized dense shrub with stems covered in formidable prickly flattened red spines and leaves consisting of 11-15 leaflets, to 1.5m tall. Bearing usually cupped white four petalled flowers to 5cm across along the stems in May-June, followed by conspicuous gourd-shaped yellow and red bi-coloured hips. My collection from close to Da Xue Shan, Sichuan China, where they grew in open very exposed mountainside only forming low shrubs to 50cm. Easily grown in any fertile soil best in sun.