Rubus pectinellus Maxim.

Species

Angiosperms > Rosales > Rosaceae > Rubus

Characteristics

Herbs or subshrubs, 8–20(–30) cm tall. Stems creeping, brown or brownish, rooting at nodes, villous, ± prickly. Leaves simple; petiole 3–6 cm, villous, with needle-like prickles; stipules free, 6–9 mm, villous, deeply digitately lobed; lobes linear-lanceolate; blade suborbicular, 2.5–4.5 × 3–5(–7) cm, venation pedate, lateral veins (1 or) 2 pairs, raised abaxially, both surfaces pilose, abaxially with needle-like prickles along veins, base deeply cordate, margin sometimes undulate-lobed or 3-lobed, unevenly dentate or doubly serrate, apex obtuse. Inflorescences 1-flowered, rarely flowers 2 or 3 in axils of apical leaves; bracts 5–8 mm, villous, palmately lobed; lobes linear-lanceolate. Pedicel 2–4 cm, villous, with needle-like prickles. Flowers to 2 cm in diam. Calyx 1.5–2 cm, abaxially villous and with needle-like prickles; tube ovoid-globose; sepals ovate to ovate-lanceolate, unequal in length, outer sepals broader, 0.9–1.3 cm × 6–9 mm, deeply divided or incised, inner sepals narrower, with few teeth or entire. Petals white, obovate or elliptic, 0.8–1.2 cm × 6–8 mm, glabrous, base clawed. Stamens many, much shorter than petals. Pistils shorter than stamens; apex of ovary and base of style slightly puberulous, glabrescent. Aggregate fruit red, globose, 1–1.5 cm in diam., glabrous, with reflexed sepals; pyrenes nearly smooth or somewhat rugulose. Fl. May–Jun, fr. Jul–Aug. 2n = 42.
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Main stems thin and wiry, creeping, up to 2 m long, rooting, with up to 20 cm long, erect, little or not branched laterals, all stems patendy soft-hairy, prickles rather few, up to 3 mm. Leaves reniform, 2-5.5 by 2-6 cm, shallowly 3(-5)-lobed, base deeply cordate, margin serrate, apex rounded, thinly herbaceous, nervation pedate with (l-)2 pairs of main side-nerves, venation widely reticulate, upper surface long-hairy between the veins, lower surface long-hairy and with needlelike prickles on nerves and veins. Petiole (l-)2-6 (-8) cm long. Stipules up to 8 by 10 mm, deeply digitately divided into up to 8 lobes. Flowers solitary, terminal on the laterals, rarely also 1-2 flowers in the axils of the upper (reduced) leaves, up to 3 cm stalked above uppermost true leaf. Hypanthium 3-4(-6) mm across, with long, soft, patent hairs and many needle-like, up to 4 mm long prickles outside. Sepals elliptic, 8-10 by 3-10 mm, growing to 12 by 13 mm in fruit, exposed margins pinnately 5-10-lobed, indumentum outside as hypanthium. Petals elliptic, 10-13 by 6-9 mm, white. Stamens 16-30, glabrous, filaments up to 5 mm, anthers 1-1.2 mm long. Pistils 24-40, ovaries with few long hairs, on elevated, hairy torus, the styles 3-4 mm long. Fruits orange to red, mesocarp thin, juicy, stone 2.5-3 mm long, endocarp smooth at first, later rugulose.
A trailing plant with heart shaped leaves. It grows about 1 m long. The stems, leaves and outer layer of sepals are armed with small spines. The leaves are rough, hairy, heart shaped and toothed. They are 3-6 cm across. The flowers are white and the fruit 1.5 cm across. They are bright red and juicy.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.2
Root system creeping-root
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

Woods, C. and S. Japan. Montane forests and valleys, riverbanks at elevations from 700-3,000 metres in southern China. Primary and secondary forest, also in mossy forest, at elevations from 750-2,750 metres in the Philippines.
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Woods, C. and S. Japan. Montane forests and valleys, riverbanks at elevations from 700-3,000 metres in southern China. Primary and secondary forest, also in mossy forest, at elevations from 750-2,750 metres in the Philippines.
It is a tropical plant. Common and widely distributed in the mossy forests of the Philippines. In China it grows between 700-3,000 m above sea level. In Sichuan and Yunnan.
Light 4-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 6-12

Usage

The fleshy fruit is eaten raw. The leaves are eaten as a vegetable.
Uses brewing dye food
Edible fruits leaves
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It can be grown from seeds.
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 pectinellus unspecified picture

Distribution

Rubus pectinellus world distribution map, present in China, Japan, Philippines, and Taiwan, Province of China

Identifiers

LSID urn:lsid:ipni.org:names:895789-1
WFO ID wfo-0001003333
COL ID 4TL7P
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Calyctenium pectinellum Rubus pectinellus Rubus pectinellus var. trilobus