Rosa nutkana Presl

Rosa nutkana Presl, Epim. Bot. 203. 1851
Rosa fraxinifolia Hook. PI. Bor. Am. 1: 199. 1832. Not R. fraxinifolia Borkh. 1790. Rosa caryocarpa Dougl.; Crepin, Bull. Soc. Bot. Belg. 15: 39, as a synonym. 1876. Rosa Lyalliana Crepin, Bull. Soc. Bot. Belg. 15: 39, as a synonym. 1876. Rosa Woodsii Regel, Acta Hort. Petrop. 5: 299. 1877. Not R. Woodsii I,indl. 1820.
Stems stout, erect, usually 1-1.5 m. high, round, usually dark-brown, armed usually with paired, large, straight prickles, which are somewhat flattened below, 6-12 mm. long; young shoots rarely slightly bristly; floral branches glabrous or nearly so, usually with smaller infrastipular spines; stipules 1-2 cm. long, adnate to the petioles, dilated, especially the uppermost, mostly glabrous, strongly glandular-dentate on the margins, the free portion ovate, acute; petiole and rachis glandular-puberulent and sometimes slightly pubescent; petioles
1 cm. long or less; leaflets 5-9, usually 7, rounded-ovate, rounded at the both ends or acute at the apex, double-serrate with glandular teeth, 1.5-5 cm. long, dark-green and glabrous above, paler and somewhat glandular-puberulent, but rarely slightly pubescent beneath on the veins; flowers most commonly solitary, rarely 2-4 together; pedicels 2-3 cm. long, usually somewhat glandular-hispid; hypanthium glabrous; sepals lanceolate, caudate-acuminate, entire, often with foliaceous appendages at the apex, villous and glandular-ciliate on the margins, glabrous or rarely glandular on the back, tomentose within, 2-3 cm. long; petals rosecolored, rarely white, broadly obcordate, 2.5-3.5 cm. long; styles not exserted; hypanthium in fruit globose, without neck, 15-18 mm. in diameter, rarely acutish at the base; sepals persistent, ascending.
Type locality: Nootka Sound, British Columbia.
Distribution: Alaska to Wyoming and Oregon (and northern California?).