Rubus gressittii F.P.Metcalf

Species

Angiosperms > Rosales > Rosaceae > Rubus

Characteristics

Shrubs scandent, 1–3 m tall. Branchlets brownish to reddish brown, slender, gray or yellowish white tomentose when young, finally glabrate, with sparse, slightly curved small prickles. Leaves simple; petiole 1–1.5 cm, tomentose-villous; stipules caducous, lanceolate or ovate-lanceolate, 7–11 mm, soft hairy; blade lanceolate to elliptic-lanceolate, 5–9 × 2.5–4 cm, veins prominent abaxially, slightly impressed adaxially, abaxially densely rusty tomentose, adaxially glabrous, base rounded to truncate, rarely shallowly cordate, margin shallowly obtusely serrate, apex shortly acuminate. Inflorescences terminal or axillary, racemes, 4–8 cm, 4–9-flowered; rachis and pedicels yellowish tomentose-villous, shortly stipitate glandular, with sparse, needle-like prickles; bracts lanceolate to ovate-lanceolate, 5–8 mm, puberulous, without stipitate glands. Pedicel to 2.5 cm. Flowers 0.8–1.2 cm in diam. Calyx densely pale rusty tomentose, sparsely shortly stipitate glandular; sepals erect, rarely reflexed in fruit, ovate to triangular-ovate, 4–7 × 2–4 mm, margin entire, apex acute. Petals white, tinged yellow, ovate or suborbicular, 5–6 × 4.5–5.5 mm, both surfaces thinly pubescent basally, base shortly clawed, apex obtuse. Stamens many, shorter than petals; filaments broad, flat, glabrous. Pistils numerous, longer than stamens; style and ovary glabrous. Aggregate fruit dark red, globose, 8–10 mm in diam, glabrous, with many drupelets; pyrenes distinctly rugose. Fl. Apr–May, fr. Jun–Jul.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0 - 3.0
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

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 6-11

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 gressittii world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:737157-1
WFO ID wfo-0001018216
COL ID 6X9N4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rubus gressittii