Rosa sherardii Davies

Églantier de Sherard (fr), Rosier de Sherard (fr)

Species

Angiosperms > Rosales > Rosaceae > Rosa

Characteristics

Shrubs, erect, ?forming small thickets?; rhizomatous or not. Stems erect, ?glaucous, stout?, 10–20 dm; distal branches often flexuous, bark reddish, ?± pruinose or glaucous?; infrastipular prickles single or paired, curved or erect, 6–9 × 3–4 mm, lengths ± uniform, internodal prickles sometimes present, aciculi absent. Leaves deciduous, 6–10(–18) cm; stipules 10–14 × 3–5 mm, auricles 3–4 mm, margins short stipitate-glandular, surfaces usually glabrous, sometimes pubescent, glandular; petiole and rachis with pricklets, pubescent, glandular; leaflets 5–7, terminal: petiolule 6–12(–40) mm, blade ovate to narrowly or broadly elliptic, 30–45(–65) × 15–30(–45) mm, base rounded, sometimes slightly cuneate, margins 2-or multi-serrate, teeth 17–26 per side, apex acute or rounded, abaxial surfaces ?light green, ± rugose?, tomentose, densely resinous-glandular, ?glands reddish brown, resin-scented?, adaxial green, dull, tomentulose or glabrous, eglandular. Inflorescences panicles, 1–3(or 4)-flowered. Pedicels erect to reflexed as hips mature, 12–17 mm, sparsely stipitate-glandular; bracts 2, ovate-lanceolate, 16–21 × 4–6 mm, margins glandular, surfaces tomentose to puberulent or glabrous, glandular or eglandular. Flowers 2.5–3.5 cm diam.; hypanthium globose, 5–6 × 5 mm, eglandular or sparsely stipitate-glandular, neck absent; sepals spreading to erect, lanceolate, 15–20 × 3–3.5 mm, margins sometimes pinnatifid, tip 4–8 × 1.5–2 mm, abaxially densely stipitate-glandular; petals deep rose pink, rarely white, 15–19 × 13–15 mm; carpels 52, styles lanate or villous, exsert 1–2 mm beyond stylar orifice (2.5 mm diam.) of hypanthial disc (4.3 mm diam.). Hips orange to bright red, globose or obovoid to ellipsoid, 13–18 × 11–18 mm, glabrous, sparsely stipitate-glandular; sepals persistent, usually spreading-erect. Achenes 40, tan, 5–5.5 × 2.5–3 mm. 2n = 28, 35, 42.
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A dense shrub. It grows 2 m high and spreads 1.8 m wide. It loses its leaves during the year. The leaves are bluish-green and hairy. The flowers are single and deep pink. They are in clusters. The fruit are urn shaped hips and are red.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 1.8
Mature height (meter) 1.5 - 2.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Woods, hedges, scrub etc. Rare in S. England. Thickets of woodland margins, overgrown pastures, open scrub, wastelands, roadsides; at elevations from 300-400 metres.
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It suits hardiness zones 5-9.
Light 4-9
Soil humidity 3-6
Soil texture 2-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 5-7

Usage

Uses medicinal
Edible fruits seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs scarification.
Mode cuttings seedlings
Germination duration (days) 30 - 365
Germination temperacture (C°) 12
Germination luminosity -
Germination treatment scarification
Minimum temperature (C°) -27
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Rosa sherardii flower picture by Christian BORDENAVE (cc-by-sa)
Rosa sherardii flower picture by Fil Eleaen (cc-by-sa)

Distribution

Rosa sherardii world distribution map, present in Belarus, Switzerland, Czech Republic, Germany, Denmark, Estonia, Finland, France, United Kingdom of Great Britain and Northern Ireland, Croatia, Hungary, Lithuania, Latvia, Moldova (Republic of), Poland, Russian Federation, Slovakia, Sweden, Ukraine, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:734252-1
WFO ID wfo-0001006828
COL ID 4TDZG
BDTFX ID 57564
INPN ID 118512
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Rosa mollissima Rosa omissa Rosa sherardii Rosa tomentosa subsp. sherardii