Rosa roxburghii Tratt.

Chestnut rose (en)

Species

Angiosperms > Rosales > Rosaceae > Rosa

Characteristics

Shrubs diffuse, 1–2.5 m tall. Bark gray-brown; branchlets ascending-spreading, purple-brown, terete; prickles paired at nodes, mostly straight, to 5 mm, somewhat flat, abruptly narrowing to broad base. Leaves including petiole 5–11 cm; stipules mostly adnate to petiole, free parts subulate, margin glandular-pubescent; rachis and petioles with scattered small prickles; leaflets 9–15, elliptic or oblong, rarely obovate, 1–2 × 0.6–1.2 cm, glabrous, abaxially with prominent veins, conspicuously reticulate, base broadly cuneate, margin acutely simply serrulate, apex acute or rounded-obtuse. Flowers solitary, or 2 or 3 and fasciculate apically on branches, 4–6 cm in diam.; pedicel short; bracts 2 or 3, small, margin glandular-pubescent. Hypanthium depressed-globose, densely bristly. Sepals 5, usually broadly ovate, abaxially densely prickly, adaxially tomentose, pinnately lobed, apex acuminate. Petals 5, slightly fragrant, pink to rose-purple or reddish, obovate. Carpels on projected torus at base of hypanthium; styles free, not exserted, shorter than stamens, pubescent. Hip green-red, depressed-globose, 1.5–2 cm in diam., densely prickly, with persistent, erect sepals. Fl. Mar–Jul, fr. Aug–Oct.
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A stiff shrub. It grows 2 m high and spreads 2 m wide. It loses its leaves during the year. The branches are angular. The bark becomes flaky and peels off. The leaves have 15 small, light green leaflets. It has double pink flowers. These are darker towards the centre. The rose hips have spines.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 1.5 - 2.5
Mature height (meter) 1.6 - 2.25
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 c3

Environment

It is a temperate plant. It grows on mountain slopes and beside streams between 500-1,400 m above sea level. It suits hardiness zones 5-10. In Sichuan.
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Waysides and semi-arid river valleys. On open slopes, in valleys, at roadsides, or in curbs at elevations of 500-2500 metres.
Light 6-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 5-9

Usage

The fruit are used for herbal tea and also for jam and wine. The leaves are used as a tea substitute.
Uses food leaf vegetable medicinal oil tea
Edible fruits leaves seeds shoots
Therapeutic use Dyspepsia (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings, graftings or seedlings. Seeds needs scarification.
Mode cuttings graftings seedlings
Germination duration (days) 30 - 365
Germination temperacture (C°) 12
Germination luminosity -
Germination treatment scarification
Minimum temperature (C°) -25
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Rosa roxburghii unspecified picture

Distribution

Rosa roxburghii world distribution map, present in China, India, Japan, and Mexico

Identifiers

LSID urn:lsid:ipni.org:names:734056-1
WFO ID wfo-0000983365
COL ID 4TDWS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Rosa roxbourgii Rosa roxburghii Rosa microphylla Juzepczukia roxburghii Rosa roxburghii f. roxburghii Platyrhodon macrophyllum Platyrhodon microphyllum Saintpierrea microphylla Rosa microphylla var. glabra Rosa roxburghii var. plena

Lower taxons

Rosa roxburghii f. normalis