10a. Rosa rubiginosa Linnaeus var. rubiginosa
Rosa suaveolens Pursh
Prickles infrastipular and internodal, lengths varying, aciculi and setae sometimes present on distal or flowering branches. Leaves: terminal blades mostly suborbiculate or broadly oval, 10–25 × 8–15 mm, apex usually acute or short-acuminate, abaxial surfaces densely glandular. Flowers 2.5–4 cm diam.; sepals deciduous as or after hips mature, styles usually villous, stylar orifice 1/3 diam. of rims 4 mm diam. Hips 10–25 × 10–22 mm. 2n = 35.
Flowering Apr–Aug. Thickets, clearings, roadsides; 0–1100 m; introduced; B.C., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que.; Ala., Ark., Calif., Colo., Conn., Del., D.C., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Europe; w Asia (Iran); n Africa; introduced also in Central America, South America, elsewhere in Africa, Pacific Islands (New Zealand), Australia.