Dwarf Rose

Rosa gymnocarpa Nutt.; T. & G. I'l. X. Am. 1: 461. 1840
Rosa spithamea subinermis Bngelm. Bot. Gaz. 6: 236. 1881. Rosa glaucodermis Greene, Leaflets 2: 255. 1912. Rosa abielorum Greene, Leaflets 2: 257. 1912. ? Rosa amplifolia Greene, Leaflets 2: 258. 1912.
Stem slender, 1-3 m. high, terete, brown or purplish, often very bristly and with infrastipular prickles, which are very slender, terete, sometimes not larger than the seal bristles, sometimes 1 cm. long; floral branches 1-2 dm. long, prickly or unarmed; stipules adnate, 5-15 mm. long, the lower narrow, the upper dilated, glabrous on the back, glandularciliate and dentate on the margin; rachis and petiole usually more or less glandular-hispid: leaflets 5-7 (rarely 9), from suborbicular to elliptic, 1-3.5 cm. long, thin, shining above, dull but not pale beneath, glabrous on both sides, doubly-serrate with gland-tipped teeth and sometimes glandular on the veins, reticulate with subpellucid veins; flowers usually solitary; pedicels 1-3 cm. long, slender, glabrous or more or less glandular-hispid; hypanthium ellipsoid, in fruit 4—6 mm. thick, 6-8 mm. long, sometimes becoming almost spherical; sepals ovate, acuminate, rarely caudate, 5-8 mm., sometimes 10 mm. long, purplish, glabrous on the back, tomentose on the margins and within, deciduous together with the upper part of the hypanthium and the styles; petals 10-15 mm. long, obcordate; styles few, distinct and deciduous.
Type locality: Oregon, in shady woods. Distribution: British Columbia to Montana and California.