Rosa subg. Rosa

Leaves (2–)3.5–15(–18) cm; leaflets 3–11(–13), margins usually serrate, rarely deeply incised or broadly crenate, terminal: petiolule (1–)5–20(–40) mm, blade elliptic, lanceolate, oblong, ovate, suborbiculate, obovate, and/or cordate, base not cuneate. Inflorescences corymbs or panicles, commonly solitary or few, 1–16(–50)-flowered. Pedicels: bracts present (absent in sect. Pimpinellifoliae). Flowers: hypanthium globose to depressed-globose, ovoid, oblong, or urceolate, rarely cupulate, obovoid, or hemispheric, glabrous, rarely setose, eglandular or stipitate-glandular; carpels 3–35(–68), styles free or connate, pubescent, sometimes glabrous, stylar orifice 0.5–3(–5) mm diam., rims 0.5 mm wide, hypanthial disc flat or conic. Hips fleshy, rarely leathery, ± setose or not.

Distribution

North America, Mexico, Eurasia, n Africa, introduced widely worldwide.

Discussion

Species ca. 135 (31 in the flora).

Subgenus Rosa includes seven sections, all represented in the flora area, five only by introduced species.

Selected References

None.

Lower Taxa

Rosa sect. Bracteatae, Rosa sect. Caninae, Rosa sect. Gallicae, Rosa sect. Laevigatae, Rosa sect. Pimpinellifoliae, Rosa sect. Rosa