Rubus biflorus

a perennial woody deciduous member of the Rubus genus in the family Rosaceae.

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Taxonomy and growth

Family
Rosaceae
Genus
Rubus
Life cycle
perennial
Foliage
deciduous
Woodiness
woody
Height
3.5 m
Spread
3.5 m
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Fruit - raw or cooked[8][3][12][2][11]. The yellow fruit is pleasantly flavoured[1]. Sweetish[4]. The fruit is about 20mm in diameter[9].

Plant part
Fruit

Material uses

This section contains historical Plants For A Future notes marked noncommercial.

A purple to dull blue dye is obtained from the fruit[5].

Product or use
Dye

Environment

Range
E. Asia - China to the Himalayas.
Habitat
Scrub, forest edges and open slopes, 1800 - 3300 metres[12][7]. Valleys, riversides, slopes, roadsides, thickets, forests and forest margins at elevations of 1500 - 3500 metres[10].
Light
full sun
Shade tolerance
light shade
Water
moderate
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - requires stratification and is best sown in early autumn in a cold frame. Stored seed requires one month stratification at about 3°c and is best sown as early as possible in the year. Prick out the seedlings when they are large enough to handle and grow on in a cold frame. Plant them out into their permanent positions in late spring of the following year. Cuttings of half-ripe wood, July/August in a frame[9]. Tip layering in July. Plant out in autumn. Division in early spring or just before leaf-fall in the autumn[9].

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

Easily grown in a good well-drained loamy soil in sun or semi-shade[1][3][9]. Hardy to about -15°c[7]. Another report suggests that the plant will only succeed outdoors in the mildest parts of the country[9]. The plant has ornamental white canes but it needs plenty of space and is not a good neighbour because of its prickly stems[6]. This species is a raspberry with biennial stems, it produces a number of new stems each year from the perennial rootstock, these stems fruit in their second year and then die[9]. Plants in this genus are notably susceptible to honey fungus[9].

References

  1. F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00

  2. Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00

  3. Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981-00-00

  4. Gupta. B. L. Forest Flora of Chakrata, Dehra Dun and Saharanpur. Forest Research Institute Press 1945-00-00

  5. Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. 1974-00-00 ISBN 0-02-544950-8

  6. Thomas. G. S. Ornamental Shrubs, Climbers and Bamboos. Murray 1992-00-00 ISBN 0-7195-5043-2

  7. Phillips. R. & Rix. M. Shrubs. Pan Books 1989-00-00 ISBN 0-330-30258-2

  8. Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications 1972-00-00 ISBN 0-486-20459-6

  9. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

  10. Flora of China 1994-00-00 http://flora.huh.harvard.edu/china/

  11. Manandhar. N. P. Plants and People of Nepal Timber Press. Oregon. 2002-00-00 ISBN 0-88192-527-6

  12. Polunin. O. and Stainton. A. Flowers of the Himalayas. Oxford Universtiy Press 1984-00-00

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