Rubus grayanus Maxim.

Species

Angiosperms > Rosales > Rosaceae > Rubus

Characteristics

Shrubs 0.5–2 m tall. Branchlets brownish to purplish brown, slightly angled, glabrous, nearly unarmed or with sparse prickles. Leaves simple; petiole 2–3 cm, slender, glabrous, with sparse, minute prickles; stipules linear, 5–7 mm, glabrous; blade ovate to elliptic, 7–10 × 3–6 cm, both surfaces glabrous, or with few soft hairs only along veins, abaxially with sparse, minute prickles along midvein, base truncate to cordate, margin often undivided, sometimes 3–5-lobed, unevenly coarsely sharply serrate to doubly serrate, apex acuminate to caudate. Inflorescences terminal on short branchlets, 1-flowered. Pedicel 1–2.5 cm, glabrous, occasionally with sparse, glandular hairs. Flowers to 2 cm in diam. Calyx abaxially glabrous; tube pelviform; sepals spreading or reflexed in fruit, ovate-triangular, 0.8–1.4 cm × 3–5 mm, margin tomentose, apex caudate. Petals red, 0.8–1.4 cm in diam., nearly as long as or slightly longer than sepals, glabrous, base shortly clawed. Stamens many; filaments and anthers purplish red. Pistils numerous, more than 100, shorter than stamens; ovary purplish red, glabrous; styles glabrous. Aggregate fruit yellowish red, ovoid-globose, 1–1.2 cm in diam., glabrous; pyrenes reniform, small, foveolate. Fl. Apr–May, fr. Jun–Jul. 2n = 14.
More
A shrub. It grows 2 m tall. The branches are brown and slightly angled. It only has a few prickles. The leaves are simple and oval. They are 7-10 cm long by 3-6 cm wide. Flowers occur singly at the ends of branches and are 2 cm across. The petals are red. The fruit is aggregate and yellowish-red. They are oval and 1-1.2 cm across.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 1.75 - 2.0
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

It is a subtropical plant. It grows in sunny areas on slopes, and in valleys near water. It grows between 300-1,100 m above sea level.
More
Slopes, open sunny areas, montane valleys, thickets and mixed forests along watercourses; at elevations from 300-1,100 metres.
Light 4-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 6-11

Usage

Uses dye
Edible fruits
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs stratification.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) 14 - 20
Size -
Vigor -
Productivity -

Images

Rubus grayanus unspecified picture

Distribution

Rubus grayanus world distribution map, present in China and Japan

Identifiers

LSID urn:lsid:ipni.org:names:737149-1
WFO ID wfo-0001015847
COL ID 6WXMS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rubus grayanus f. chaetophotus Rubus grayanus Rubus corchorifolius var. grayanus Rubus grayanus var. chaetophotus Rubus grayanus var. glaber Rubus grayanus var. grayanus

Lower taxons

Rubus grayanus var. trilobatus