California Wildrose

Rosa aldersonii Greene, Pittonia 5: 110.. 1903
Rosa califomica Pelersiana C. Meyer, Zimmtr. 19. 1847.
Rosa cinnamomea var. Benth. PI. Hartw. 309. 1849.
Rosa califomica glandulosa Crepin, Bull. Soc. Bot. Belg. 15: 52. 1876.
Rosa Aschersoniana Crepin, Bull. Soc. Bot. Belg. IS: 52, as a synonym. 1876.
Rosa Breweri Greene, Leaflets 2: 262. 1912.
Stems erect, brown, branched, 1-2 m. high, glabrous, armed with recurved, more or less flattened prickles 5-10 mm. long; stipules adnate, 1-2 cm. long, usually narrow, somewhat pubescent, more or less glandular-puberulent beneath, strongly glandular-dentate on the margins; petiole and rachis usually copiously glandular, somewhat pubescent and prickly; petioles 1-2 cm. long; leaflets 5-7, ovate or oval, 1-4 cm. long, obtuse at the base, acute or obtuse at the apex, double-serrate with gland-tipped teeth, especially the secondary ones, dark-green and more or less appressed-puberulent above, decidedly glandular-puberulent and often pubescent beneath; inflorescence usually corymbiform, leafy-bracted, 1-8-flowered; pedicels short, glabrous or slightly villous or sometimes glandular (R. Breweri); hypanthium glabrous, hemispheric, with a distinct neck, in fruit 10-15 mm. broad; sepals lanceolate, caudateattenuate, 1 5-20 mm. long, villous and rarely glandular on the margins, glabrous on the back, tomentose within, in fruit erect and persistent or tardily deciduous; petals rose-colored, 1.5-2 cm. long; styles numerous, distinct, sometimes somewhat exserted.
Type locality: Witch Creek, San Diego County, California. Distribution: California, especially in the coast ranges.

Rosa californica Cham. & Schlecht. Linnaea 2: 35. 1827
Rosa califomica chammissoniana C. Meyer, Zimmtr. 18. 1847.
Rosa califomica pubescens Crepin, Bull. Soe. Bot. Belg. 15: 52. 1876..
Rosa Hartwegiana Crepin, Bull. Soc. Bot. Belg. 15: 52, as a synonym. 1876.
Stem erect, terete, light-brown or yellowish, diffusely branched, 1-3 m. high, usually armed with stout flattened, recurved prickles 5-8 mm. long; young shoots sometimes bristly; floral branches 1-3 dm. long, usually prickly; stipules adnate, narrow or those of the upper leaves dilated, more or less villous, glandular-dentate; petiole and rachis villous, prickly, and sometimes somewhat glandular; petioles 0.5-2 cm. long; leaflets 5-7, rarely 3 or 9, oval, 1-2 cm. long, usually simply serrate, with triangular-lanceolate, not glandular teeth, dull and more or less appressed-pubescent above, villous, but rarely slightly glandular beneath, usually rounded or obtuse at both ends; inflorescence usually corymbiform, leafy-bracted, 1—10flowered; pedicels short, glabrous or somewhat villous; hypanthium glabrous, globose or subglobose, with a distinct neck, in fruit 10-15 mm. broad; sepals lanceolate, caudate-attenuate, about 15 mm. long, entire, villous and rarely glandular on the margins, tomentose within; petals obcordate, 1.5-2.5 cm. long, rose-colored; styles free, not exserted.
Type locality: San Francisco, California.
Distribution: Oregon to northern Lower California.