Rosa davidii Crép.

Species

Angiosperms > Rosales > Rosaceae > Rosa

Characteristics

Shrubs 1.5–4 m tall. Branchlets spreading, terete, slender, glabrous; prickles sparse to scattered, triangular, straight or slightly curved, flat, gradually tapering to broad base. Leaves including petiole 7–14 cm; stipules mostly adnate to petiole, free parts ovate, margin glandular, apex apiculate; rachis and petiole puberulous, glandular-pubescent, sparsely shortly prickly; leaflets 7–9, rarely 11 or 5, 2.5–7 × 1–2(–3) cm, abaxially densely puberulous or sparsely pubescent, rarely glabrous, adaxially usually glabrous, base subrounded or broadly cuneate, margin acutely simply serrate, apex acute. Flowers 3 to numerous in corymb, 2–3 cm in diam.; pedicel 1.5–2.5 cm, pubescent and stipitate glandular, glands to 3 mm; bracts large, ovate or lanceolate, both surfaces puberulous, margin entire, apex acuminate. Hypanthium elliptic or long ovoid, densely stipitate glandular. Sepals 5, ovate, leaflike, both surfaces puberulous, abaxially glandular-pubescent, margin entire. Petals 5, deep pink, broadly obovate, base broadly cuneate, apex emarginate. Styles free, slightly exserted, shorter than or nearly equaling stamens, densely pubescent. Hip deep red or orange-red, long ellipsoid or long obovoid, 1–1.5 × 1.8–2.5 cm, with a long neck at apex, glandular-pubescent or not, with persistent, erect sepals. Fl. Jun–Jul, fr. Sep.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.5 - 4.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 6-9
Soil humidity 1-5
Soil texture 3-4
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 7-8

Usage

Uses -
Edible -
Therapeutic use Insecticides (flower), Furunculosis (leaf), Laxatives (leaf), Ulcer (leaf), Urinary tract infections (leaf)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings.
Mode cuttings
Germination duration (days) 30 - 365
Germination temperacture (C°) 12
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Rosa davidii world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:732242-1
WFO ID wfo-0001132001
COL ID -
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rosa davidii