'R. davidii' rose References
Article (magazine) (2008) Page(s) 65.
R. davidii Crep. Assigned DNA ploidy=6 Published Ploidy=4
Book (2000) Page(s) 50.
Rosa davidii /’Rosier du Père David’ /’Father David’s Rose’ = robustes tiges armées de longs aiguillons pointus, élargis à la base… feuilles, de 7 à 9 folioles, profondément nervurées… vert effleuré de bleu sur la pubescence du revers… odorantes… Tibet, 1908.
Book (1984) Page(s) 106.
Rosa davidii Crép. = Chine occidentale, introduit en 1908. Feuilles: 7 ou 9 folioles elliptiques allongées, 2 à 4cm de long, bords à dents simples. Fleurs: 4 à 5cm de diamètre… corymbes paniculés… Tiges d’un vert doux… aiguillons dispersés, droits, élargis à la base et rougeâtres. Les feuilles mates, très veinées et foncées sur l’endroit… revers velus et bleutés… grands corymbes de fleurs rose mauve, et dont le style ressort si curieusement… fruits (2cm de long) en forme de bouteille, rouge écarlate. Ce rosier est intéressant à cause de sa floraison très tardive (fin juillet seulement).
Website/Catalog (1982) Page(s) 32.
Rose davidii A useful, late-flowering variety with soft pink flowers, followed by flaggon shaped heps borne all along each stem, sometimes in clusters. Upright and vigorous with heavily veined light green foliage. 1908. F. W. Shade tolerant. (S) 10 x 5’
Book (1981) Page(s) 84-85.
R. davidii Crép.
A deciduous shrub of loose, spreading habit 6 to 12 ft high; young shoots glabrous, armed...with scattered, straight, or slightly curved, spines. Leaves up to 6 in. or more long, composed of five to eleven (usually seven or nine) leaflets....dark green and glabrous above...downy beneath....Flowers bright rose-pink, 1½ to 2 in. wide...each flower on a selnder, downy, more or less glandular stalk...Fruits pendulous, scarlet red, bottle-shaped, ¾ in. long.
Native to western and central Cina and S.E. Tibet; introduced by Wilson in 1903 and again in 1908. It is allied to R. macrophylla, but the flowers are usually more numberous in each inflorescence and smaller....It is handsome in autumn, when laden with its pendulous clusters of bright red fruits.
Book (1978) Page(s) 229.
One of the type of R macrophylla,, and therefore notable for its hips, bright red and large, the old sepals playing their trick of elongation. the flowers are pink. The stems grow stout and strong up to about head high, and then reach out from the plant in a great arch. R davidii comes from the area where China joins the east of Tibet.
Edit: Included in the chapter titled: Cinnamomeae and Hybrids.
Book (1940) Page(s) 442.
R. Davidi Crép. Shrub to 3 m.; stems with straight stout scattered prickles 4-6 mm. long, much enlaged at the base: lfts. 7-9, rarely 11, elliptic to ovate-oblong, 2-4, rarely 6 cm. long, simply serrate, glabrous above, glaucescent and puberulous beneath; rachis puberulous, sparingly prickly: fls. pink, 3.5-5 cm. across, corymose; pedicels like the oblong receptacle glandular-bristly or sometimes only puberulous; styles exserted about 3 mm.: fr. ovoid or oblong-ovoid, 1.5-2 cm. long, with long neck, scarlet. Fl.VI-VII. B.M.8679(c). G.C.78:423. W. China. Intr. 1908. Zone V.
Website/Catalog (1937) Page(s) 106.
Park Roses...Rosa Davidii, deep pink, single, 150-250 cm. May-July
Book (1917) Page(s) 91.
Rosa davidii Crép. A pink-flowered rose from western Szechwan, China, reaching a neight of 16 feet and growing at altitudes of 1600 to 3000 meters.
Magazine (1916) Page(s) t. 8679 vol. 142, ser. 4,. Includes photo(s).
Rosa Davidii, Crép. in Bull. Soc. Bot. Belg. vol. xiii. p. 253 (1874); Franch in Nouv. Arch. Mus. Paris, sér. 2, vol. v. p. 270 (Pl. David.vol. i. p. 118) Rehder Wils. in Sarg. Pl. Wilson. vol. ii. p. 332; affinis R. corymbulosae, Rolfe, sed foliolis plurimis simpliciter serratis, corymbis laxis, bracteis majoribus, floribus majoribus et glandulis longioribus differt.
Frutex erectus, parce ramosus, 1-2-metralis; ramuli laeves, aculeis rectis patentibus sublatis dispersis 4-6 mm. longis armati, demum brunnoi. Folia 8-10 cm. longa, 7-9-foliolata; rhachis puberula, aculeis gracilibus sparsis instructa; foliola subsessilia, elliptico-oblonga vel ovato-oblonga, subacuta, simpliciter et acute serrata, subtus cinereo-puberula, 2-3 cm. longa, 1-1.5 cm. lata; stipulae adnatae, anguste oblongae, acutae vel acuminatae, integrae, 0.7-1.5 cm. longae. Flores rosei, corymbulosi, versus apices ramorum laxe dispositi, circiter 3 cm. diametro. Bracteae ovatae, acuminatae, puberulae, 1.2-1.5 em. longae. Pedunculi graciles, 3-4 cm. longi, glanduloso-setulosi. Receptaculum anguste ovoideo-oblongum, 3-4 mm. longum, crebre glandulosum. Calycis lobi basi ovati, apice longe foliacei et lanceolati, acuti, 1.3-2 cm. longi, patentes, intus cinereo-tomentosi. Petala late obcordata. Filamenta glabra, 4-5 min. longa; antheris aureis. Styli villosi, in columnam 6 mm. longam cohaerentes. Fructus ovoideus, 1-1.3 cm. longus, coccineus, sepalis persistentibus suberectis coronatus. Achaenia villosa, ovoidea, 3 mm. longa.—R. A. ROLFE.
The Rose here figured was originally described by Crépin in 1874, and was based on a flowering specimen forwarded by Decaisne which was then believed to have been received through the Abbé David from Mongolia. It was placed somewhat doubtfully in the section Synstylae,and was compared with R. moschata, Herrm., though the difference in colour of petals and in the shape of the sepals and bracts was pointed out. This comparison and the reference to Synstylae have tended to obscure the identity of David's plant, but a photograph of the original specimen supplied by Mr. Gagnepain shows that on the original label Crépin added to the name the remark "R. macrophylla, var.," a suggestion more in accord with its true affinity. This photograph further shows that David had himself given the locality as Eastern Tibet, and Mr. E. H. Wilson, who has also collected this species, remarks that it is common on the mountains of Moupine in Western Szechuan. The bush from which our plate has been prepared was raised from seed sent from the Arnold Arboretum in 1909. At Kew it has grown very freely and borne good crops of its graceful fruit. The seed in question was obtained by Wilson in September, 1908, near Wen-ch'uan Hsien in Western Szechuan at 7,000-10,000 feet above sea-level. In the wild state it occurs in thickets and forms a bush three to five feet in height. At Kew it has proved one of the most easily grown species of Rose, and thrives excellently in stiff loamy soil. In addition to the highly coloured fruits a marked feature of this Rosa is afforded by the numerous ovate bracts which sometimes exceed in size those shown in our figure. Like other members of its group, R. Davidii should be easily increased by cuttings taken in August and placed in a propagating case in gentle heat.
DESCRIPTION.—Shrub, sparingly branched, 3-5 ft. high; twigs smooth, armed with straight, spreading, subulate, scattered prickles 1/8-1/6 in. long, bark at length brown. Leaves 3-4 in. long, 7-9 foliolate; rachis puberulous, with scattered slender prickles; leaflets subsessile, elliptic-oblong or ovate-oblong, subacute, simply sharply serrate, grey puberulous beneath, 3/4-1 1/4 in. long, in. wide; stipules adnate, narrow-oblong, acute or acuminate, entire, in. long. Flowers rose-pink, somewhat loosely corymbose, near the tips of twigs, about 1 1/4 in. across; bracts ovate, acuminate, puberulous, 1/2 -2/3 in. long; peduncles slender, 1 1/4-1 1/2 in long, slender, setose. Receptacle narrowly ovoid-oblong, 1 1/4-1 1/2 in. long, closely glandular. Calyx-lobes leafy, lanceolate from an ovate base, acute, 1/2-3/4 in. long, spreading, grey-tomentose within. Petals wide-obcordate. Filaments glabrous, 1/6-1/5 in. long; anthers golden-yellow. Styles villous, cohering in a column 1/4 in. long. Fruit ovoid, 1/3-1/2 in. long, pink, crowned by the persistent suberect sepals. Achenes villous, ovoid, 1/8 in. long.