Rosa pimpinellifolia, L.

5. R. pimpinellifolia L. View in CoL , Syst. Nat. ed. 10, 2: 1062 (1759)

( R. spinosissima L. pro parte, R. myriacantha DC. ).

Stems up to 1 m, erect, forming dense patches. Prickles abundant and long on the main stems, sparser and shorter on the flowering stems and mixed with acides. Leaflets 5-11, 5-15(-20) x 4-9 mm, glabrous, suborbicular to broadly elliptical, usually simply serrate and eglandular. Flowers solitary. Pedicels longer than the fruit, eglandular or with stalked glands. Sepals narrowly lanceolate, acuminate, eglandular. Petals 10-20(-25) mm, white, rarely pink. Styles short, usually in a compact head, lanate. Fruit c. 6 mm, globose or depressed-globose, black. 2n = 28. Europe except the north-east, most o f Fennoscandia, the extreme south-west and many o f the islands. Al Au Be Br Bu Cz D a Ga Ge G r Hb He Ho Hu Is It Ju No Po Rm Rs (C, W, K, E) |S u.

Many hybrids between 5 and members of Sect. Caninae have been described. The influence of 5 is usually recognizable in the presence of acides and in the habit and leaflet-shape.