Rosa davidii Crép.

TSO logo

Sponsor this page

For information about how you could sponsor this page, see How You Can Help

Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Rosa davidii' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rosa/rosa-davidii/). Accessed 2022-01-24.

Genus

Glossary

receptacle
Enlarged end of a flower stalk that bears floral parts; (in some Podocarpaceae) fleshy structure bearing a seed formed by fusion of lowermost seed scales and peduncle.
Tibet
Traditional English name for the formerly independent state known to its people as Bod now the Tibet (Xizang) Autonomous Region of the People’s Republic of China. The name Xizang is used in lists of Chinese provinces.
apex
(pl. apices) Tip. apical At the apex.
exserted
Protruding; pushed out.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
glandular
Bearing glands.
glaucous
Grey-blue often from superficial layer of wax (bloom).
inflorescence
Flower-bearing part of a plant; arrangement of flowers on the floral axis.
midrib
midveinCentral and principal vein in a leaf.
ovate
Egg-shaped; broadest towards the stem.
rachis
Central axis of an inflorescence cone or pinnate leaf.

References

There are no active references in this article.

Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Rosa davidii' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rosa/rosa-davidii/). Accessed 2022-01-24.

A deciduous shrub of loose, spreading habit 6 to 12 ft high; young shoots glabrous, armed (often very strongly) 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 which are oval or ovate, pointed, simply toothed, 13 to 2 in. long, 14 to 1 in. wide, each pair increasing in size towards the end; dark green and glabrous above, rather glaucous and downy beneath, especially on the midrib and veins; rachis downy, sparsely spiny. Flowers bright rose-pink, 112 to 2 in. wide, produced during June and July in loose corymbs, each flower on a slender, downy, more or less glandular stalk 1 to 112 in. long. Sepals 12 to 34 in. long, downy, often glandular, ovate at the base but prolonged into an enlarged often spoon-shaped apex. Receptacle glandular and more or less downy. Styles exserted. Fruits pendulous, scarlet-red, bottle-shaped, 34 in. long, narrowed at the top to a slender neck, above which are the persistent sepals. Bot. Mag., t. 8679.

Native of western and central China, and of S.E. Tibet; introduced by Wilson in 1903 and again in 1908. It is allied to R. macrophylla, but the flowers are usually more numerous in each inflorescence and smaller, the sepals are broad in the lower part and abruptly narrowed to a slender tip and, a difference given by Boulenger, the stylar aperture is narrower, being one-quarter to one-fifth the diameter of the disk, against one-third in R. macrophylla. R. davidii flowers rather later than most of the shrubby species. It is handsomest in autumn, when laden with its pendulous clusters of bright red fruits. As a vigorous shrub of spreading habit it is suitable for the semi-wild part of the garden.

From the Supplement (Vol. V)

Rosa species Lancaster 812 has flowered and seems to be R. davidii. The flowers in the better of the two seedlings seen are dog-rose pink paling to white at the centre (almost white in the other plant), up to twelve in a cluster. The seed was collected in 1981 in western Szechwan, on the Yiba Shan, west of Mount Omei (Emei Shan) between Yaan and Hanyuan at about 7,500 ft. The Wa Shan, where Wilson collected seeds for Messrs Veitch, is in the same area.


'Acicularis'

Stems densely set with needle-like prickles, which sometimes extend onto the flowering branchlets. Flowers about 1 in. wide, deep rose, borne in June (R. macrophylla var. acicularis Vilm.; R. persetosa Rolfe; R. davidii var. persetosa (Rolfe) Boulenger, nom. illegit.). Raised by Maurice de Vilmorin from seeds sent from Yunnan to his collection at Les Barres and introduced to Britain by Paul of Cheshunt, in whose nursery it flowered in 1912. It is a Chinese counterpart of R. pendulina ‘Malyi’ (q.v.).

R banksiopsis Bak

This was described from a plant raised by Miss Willmott from seeds collected by Wilson during his first expedition for the Arnold Arboretum (1907-8). According to Boulenger it represents a form of R. davidii with smooth pedicels. It is not known to be in cultivation.

R murieliae Rehd. & Wils

Near to R. davidii, but with grey-green leaves and white flowers. A very elegant species, named after the daughter of E. H. Wilson, who introduced it from W. Szechwan, China, when collecting for Messrs Veitch. It is included in R. davidii by Boulenger.

var. elongata Rehd. & Wils

Leaflets longer (to 3 in. long). Flowers fewer in each corymb. This variety is very near to R. macrophylla. See that species for the Forrest introductions identified as R. davidii var. elongata.