Newsletter  (Aug 2016)  Page(s) 21.Vol 27, No. 3.  
 
Geoff Crowhurst. Wild Roses in Chengde.
Our group was fortunate to have a young Chinese man accompanying us, who had good knowledge of the flora, and carried a guide book which he consulted from time to time.....Plants of R. davurica and R. bella were located, but neither had come into flower. A single hip remained on the former from the previous season. R. davurica is found in the northern provinces of China, Mongolia, Korea and Eastern Siberia. We were later to learn that it is one of a small group of species being used by the Chinese to develop cold hardy hybrid roses suited to the northern provinces.

Book  (1 May 2003)  
 
30. Rosa davurica Pallas, Fl. Ross. 1(2): 61. 1789.
山刺玫 shan ci mei
Shrubs erect, ca. 1.5 m tall. Branchlets purple-brown or gray-brown, terete, glabrous; prickles paired below leaves, yellowish, terete, slightly curved, abruptly flaring to broad base. Leaves including petiole 4–10 cm; stipules mostly adnate to petiole, free parts ovate, abaxially pubescent, margin glandular serrate, apex acute; rachis and petiole pubescent, glandular-pubescent, sparsely prickly; leaflets 7–9, oblong or broadly lanceolate, 1.5–3.5(–4) × 0.5–1.5 cm, abaxially glandular punctate or not, sparsely puberulous or glabrous with prominent midvein and lateral veins, adaxially glabrous, with concave midvein and lateral veins, base rounded or broadly cuneate, margin simple and doubly serrate, apex acute or rounded-obtuse. Flowers solitary, or 2 or 3 and fasciculate, axillary, 3–4 cm in diam.; pedicel 5–8 mm, glabrous or glandular-pubescent; bracts ovate, abaxially pubescent and glandular punctate, margin glandular serrate, apex acuminate. Hypanthium subglobose, glabrous. Sepals 5, lanceolate, leaflike, abaxially sparsely pubescent and shortly glandular-pubescent, adaxially pubescent, margin irregularly serrate or glandular-pubescent. Petals 5, pink, obovate, base broadly cuneate, apex rounded. Styles free, much shorter than stamens, pubescent. Hip red, globose or ovoid, 1–1.5 cm in diam., with a distinct neck, glabrous, with persistent, erect sepals. Fl. Jun–Jul, fr. Aug–Sep.
Sunny places at forest margins, grassy places on hills, slopes; 400--2500 m. Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shanxi [Japan, Korea, S Mongolia, Russia (E Siberia)].

Article (magazine)  (2001)  Page(s) 393.  
 
R. davurica Pall. Ploidy 2x
Pollen fertility 92.9%
Selfed Fruit set 0%

Book  (2001)  Page(s) 447.  
 
Rosa davurica Pallas, Fl. Ross. 1, 2 (1788) 61.
Rosa willdenowii Sprengel, Syst. Veg. 2 (1825) 547.
Dahurian rose; German Dahurische Rose; Russian roza daurskaja.
S Yakutia, Amur Region, Mongolia and N China.
Cultivated for the fruits in the former Soviet Union.
Ref.: Pavil'onov & Rožkov 1986, 86 pp.

Book  (Aug 1990)  Page(s) 42, 46.  Includes photo(s).
 
Rosa davurica Introduced 1910. Very fragrant, blush pink flowers. Foliage [turns] yellow in fall... Extremely vigorous and hardy.

Probably the most invasive of all the species roses...

Book  (1984)  Page(s) 103.  
 
Rosa davurica /Rosa davurica Pall. /Rosa willdenowii K.Spreng = Nord-est de l’Asie et nord de la Chine, introduit en 1910. 1m de haut… Ce rosier ressemble à Rosa majalis; il s’en distingue principalement par ses aiguillons droits et étroits, ses feuilles doublement dentées, ses stipules étroites, ses pédoncules plus longs et glanduleux, ses fruits ovoïdes, ses sépales plus longs que ses pétales, d’une texture feuillée à la pointe, et persistants...

Book  (1981)  Page(s) 274-275.  
 
R. davurica Pall.
Shrub closely related to R. majalis about 1 m high, stems nearly bald, prickles in infrastipular pairs, large, hooked, but otherwise straight and slender. Leaflets 7, oblong-laceolate...stipules narrow...flowers 1-3. Fruits....smooth. N. China, NE Asia. 2n=14

Book  (1971)  Page(s) 341-342.  Includes photo(s).
 
R.davurica Pall., Fl. Ross. I, 11(1788)61; Crep. in Bull. Soc. Bot. Belg. XIV (1875) 33.- R. gmelinii Ldb., Fl. Ross. II, 75 saltern p. p., non Bge.— R. c innamomea Ldb., Fl. Ross. II, 76 saltem p. p., non L.
Shrub, erect, strongly branching, often 1.5 m high; branches thin, rigid, smooth, with brown or black-purple bark; prickles usually stipulate, i. e., arranged in pairs at base of branches and on annotinous branchlets at base of leaves, markedly spreading, slightly curved, yellowish or gray; leaves 4—8 cm long, with pubescent petioles densely covered with delicate gland, narrow, finely serrate, with glandular margins, often slightly pubescent; stipules reddish (broadened only on bracts of inflorescence); leaflets, 7, nearly equal, oblong or narrowly elliptic, tapering at both ends, glabrous or barely pubescent above, more or less pubescent beneath, in addition covered with very small yellowish sessile glands, entire at base(sometimes nearly to middle) with increasing serration toward summit, teeth 10—22 on each side small, directed upward, acute, simple. Flowers solitary or 2—3, ca. 4 cm in diameter; pedicels glabrous, smooth or with sparse stalked glands; sepals narrowly lanceolate, with few broadened appendages at summit, 1.5—2.5 cm long, equal to or slightly longer than petals, pubescent inside and along margin, often glandular, glabrous dorsally; petals dark pink, entire, large; stigma head orbicular, densely lanate; fruit globose, ovoid or oblong, smooth, red, 1—1.5 cm in diameter. June— July. (Plate XXVIII, Figure 3).
Open places, birch forests, sparse larch forests.— E. Siberia: Lena-Kol. (southern part), Dau.; Far East: Ze.-Bu., Uss. Gen. distr.: Mong., Jap.-Ch. (Manchuria). Described from Dauria and Mongolia. Cotype in
Leningrad.
Economic importance. The edible fruit is picked and stored by the people of East Siberia and the Far East (S. Sikhote-Alin). It contains ca. 2.80% ascorbic acid (per dry weight of pulp). The plant, readily visited by bees, is an excellent source of beebread.

Book  (1965)  Page(s) 541.  
 
6. Rosa davurica Pall. R. willdenowii Spreng.; R. cinnamomea var. davurica (Pall.) C. A. Mey.; R. marretii Lev.; R. rubrostipulata Nakai - Yama-hama-nasu, Karafuto-ibara. Shrub with glabrous branches becoming purplish brown with age, the prickles flat, supular; stipules membranous, brownish, entire, the free portion oblong or ovate, rounded, rarely acute or mucronate; leaflets 7-9, oblong, 2-3 cm. long, 1-1.5 cm. wide, subacute to obtuse, slightly appressed--pubescent to glabrous on upper side, whitish, glandular, and with appressed pubescence especially on midrib beneath; flowers 1-3, deep pink, 3-4 cm. across, with glabrous pedicels; calyx with a globose, glabrous tube, the lobes elongate, with white tomentum inside and on margin; fruit globose or ellipsoidal, about 12 mm. across, red. - June-July. Hokkaido, Honshu (Shinano Prov.); rare. - Sakhalin and Korea to Manchuria and e. Siberia.

Book  (Jul 1938)  Page(s) 86.  
 
R. davurica. - Closely related to the preceding species. Planted in 1931 at Beaverlodge; not recently promising though it has wintered somewhat better than R. micrantha, R. villosa and R. Willmottiae. The form from North Manchuria seeds is quite hardy at Dropmore, Man. (perhaps hardier than any single-flowered rugosa), the foliage is glossy, and it may prove of value in breeding work.