Rubus dunnii F.P.Metcalf

Species

Angiosperms > Rosales > Rosaceae > Rubus

Characteristics

Shrubs scandent. Branchlets brown or grayish brown, terete, initially yellowish brown tomentose, glabrescent, with sparse, curved minute prickles. Leaves simple; petiole 1–2 cm, tomentose when young, glabrate in age, with sparse, short prickles; stipules caducous, ovate-lanceolate to narrowly elliptic, 6–9 mm, tomentose, apex acuminate; blades broadly ovate, 5–10 × 3–6 cm, lateral veins 7–9 pairs, prominent abaxially, leathery, abaxially densely yellowish brown to rust colored tomentose, adaxially green brown, glabrous, base cordate, margin shallowly obtusely coarsely serrate, apex acuminate. Inflorescences terminal or axillary, racemes, 4–8 cm, few flowered; rachis, pedicels, and calyx yellowish white tomentose-villous, with sparse, needle-like prickles, with intermixed glandular hairs 1.5–2.5 cm; bracts narrowly elliptic or narrowly ovate-lanceolate, abaxially tomentose-villous, with intermixed glandular hairs, adaxially sparsely hairy, margin entire or lobed, apex acuminate. Pedicel 2–4 cm. Sepals erect after anthesis, lanceolate, 7–11 × 3–5(–7) mm, margin entire or 2-lobed, apex acuminate. Petals obovate, 7–10 × 4–6 mm, base tomentose, clawed, apex obtuse. Stamens many, shorter than petals; filaments broad, complanate, glabrous. Pistils much longer than stamens. Aggregate fruit red, subglobose, to 1.5 cm in diam., glabrous; pyrenes smooth or slightly rugose. Fl. Mar–Apr, fr. Jun–Jul.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
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 -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 7-11

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) 14 - 20
Size -
Vigor -
Productivity -

Distribution

Rubus dunnii world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:736444-1
WFO ID wfo-0001015880
COL ID 4TJZL
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rubus dunnii Rubus dunnii var. dunnii

Lower taxons

Rubus dunnii var. glabrescens