Rubus volkensii Engl.

Species

Angiosperms > Rosales > Rosaceae > Rubus

Characteristics

A handsome, viscid shrub, up to 4 m. tall.. Stems brownish-red, densely covered with stipitate and sessile glands intermingled with loose white hairs and scattered prickles.. Leaves imparipinnate, or trifoliolate within the inflorescence with the terminal leaflets petiolulate, the lateral ones sessile; leaflets ovate, ovate-elliptic or ovate-lanceolate, up to 10.5 × 6.5 cm., often long-acuminate, the base rounded to cordate, sharply serrate or biserrate, with very acute teeth, green on both surfaces, pilose and glandular on both surfaces but more so beneath, the young leaves softly villous; rhachis hairy, glandular and prickly as the stems.. Inflorescence loosely paniculate, terminal and axillary, scarcely or not exceeding the leaves.. Peduncles densely stipitate-glandular.. Pedicels densely stipitate-glandular.. Flowers large, 2.5–3 cm. diameter, apparently somewhat drooping.. Calyx densely stipitate-glandular on the outer side, the calyx sometimes with basal pricklets, divided almost to the base into ovate-lanceolate, caudate-acuminate lobes 2–2.5 cm. long.. Petals yellow or palely so, sometimes white, broadly ovate, 1.5–2 cm. long, obtuse.. Carpels pubescent.. Ripe fruit viscid, edible but rather acid, apparently yellow or orange becoming bright red or brownish-red at maturity.
More
A prickly shrub. It grows 4 m high. The stems have hooked prickles. There are also brown sticky hairs. The leaves are compound with up to 7 leaflets. The leaflets are hairy. There are teeth along the edge. The flowers are yellow to white. The fruit are 1.5 cm across. They are orange to red when ripe.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 4.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant. In Kenya it grows in high altitude forest between 2,150-3,550 m.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The fruit are eaten raw.
Uses -
Edible fruits
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 volkensii world distribution map, present in Ethiopia, Kenya, Tanzania, United Republic of, and Uganda

Identifiers

LSID urn:lsid:ipni.org:names:741205-1
WFO ID wfo-0000996185
COL ID 4TM3N
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rubus chiesae Rubus volkensii Rubus mauensis