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Useful Tropical Plants

Rubus nubigenus

Kunth

Rosaceae


The genus Rubus, (especially the blackberries, which are often loosely referred to as Rubus fruticosus agg.) presents some of the most difficult taxonomic problems. This is partly due to the frequency of polyploidy; also to the frequent occurrence of hybridization; and also due to apomixis, where minor differences between plants are preserved because seedlings are genetically identical to their parent. As a result, differences of opinion on the number of species to be recognized from a given region can vary tremendously (for example, a treatment by M. L. Fernald[
43
Title
Gray's Manual of Botany.
Publication
 
Author
Fernald. M. L.
Publisher
American Book Co.; New York
Year
1908
ISBN
-
Description
A bit dated but a good and concise flora of the eastern part of N. America.
] in 1950 recognized 205 species for the northern half of the eastern United States plus parts of southeastern Canada, whilst H. A. Gleason and A. Cronquist in 1991 recognized only 25)[
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
]. Where possible, a relatively conservative approach is taken here[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

+ Synonyms

Rubus macrocarpus Benth.

Rubus stipularis Benth.

Common Name: Giant Colombian Blackberry

Rubus nubigenus
Flowers and leaves
Photograph by: Alfredo F. Fuentes
Creative Commons License
Rubus nubigenus Rubus nubigenus

General Information

Rubus nubigenus is a deciduous shrub producing each year a cluster of scrambling, prickly, biennial stems from a woody rootstock; the stems can grow 2 metres or more long. The stems only produce leaves, and do not flower, in their first year of growth; forming flowering branches in their second year and then dying after fruiting.
The plant is harvested from the wild for local use as a food. It is cultivated at higher elevations in Peru and Colombia, and occasionally elsewhere, the fruit being sold in local markets[
196
Title
Lost Crops of the Incas
Publication
 
Author
Popenoe. H. et al
Publisher
National Academy Press
Year
1990
ISBN
0-309-04264-X
Description
An excellent book. Very readable, with lots of information and good pictures of some lesser known food plants of S. America.
,
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].

Known Hazards

None known

Botanical References


Range

S. America - Bolivia, Peru, Ecuador, Colombia.

Habitat

Found at elevations between 2,600 - 3,400 metres[
196
Title
Lost Crops of the Incas
Publication
 
Author
Popenoe. H. et al
Publisher
National Academy Press
Year
1990
ISBN
0-309-04264-X
Description
An excellent book. Very readable, with lots of information and good pictures of some lesser known food plants of S. America.
].

Properties

Edibility Rating *  *  *
Other Uses Rating *  *
HabitDeciduous Shrub
Height2.00 m
PollinatorsApomictic
Self-fertileYes
Cultivation StatusCultivated, Wild

Cultivation Details

A plant of tropical, highland climates, it also has potential for growing in subtropical and temperate areas.
Species in this genus are generally easily grown in a good well-drained loamy soil in sun or semi-shade[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
,
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
,
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Attempts to grow this species outside its natural range have met with failure[
196
Title
Lost Crops of the Incas
Publication
 
Author
Popenoe. H. et al
Publisher
National Academy Press
Year
1990
ISBN
0-309-04264-X
Description
An excellent book. Very readable, with lots of information and good pictures of some lesser known food plants of S. America.
].
Plants in this genus are notably susceptible to honey fungus[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Edible Uses

Fruit - raw or cooked[
196
Title
Lost Crops of the Incas
Publication
 
Author
Popenoe. H. et al
Publisher
National Academy Press
Year
1990
ISBN
0-309-04264-X
Description
An excellent book. Very readable, with lots of information and good pictures of some lesser known food plants of S. America.
]. A loganberry-like flavour[
196
Title
Lost Crops of the Incas
Publication
 
Author
Popenoe. H. et al
Publisher
National Academy Press
Year
1990
ISBN
0-309-04264-X
Description
An excellent book. Very readable, with lots of information and good pictures of some lesser known food plants of S. America.
]. This species has probably the largest fruit of the genus, it is up to 50mm long and 25mm wide - fruits as large as a hen's egg have been seen[
196
Title
Lost Crops of the Incas
Publication
 
Author
Popenoe. H. et al
Publisher
National Academy Press
Year
1990
ISBN
0-309-04264-X
Description
An excellent book. Very readable, with lots of information and good pictures of some lesser known food plants of S. America.
].

Medicinal

None known

Other Uses

This species is of interest in breeding programmes because of the large size of its fruits[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].

A purple to dull blue dye is obtained from the fruit[
168
Title
Nature's Colors - Dyes from Plants.
Publication
 
Author
Grae. I.
Publisher
MacMillan Publishing Co. New York.
Year
1974
ISBN
0-02-544950-8
Description
A very good and readable book on dyeing.
].

Propagation

Seed - germinates best if given a period of cold stratification prior to sowing in containers. Stored seed requires one month stratification at about 3°c and is best sown as early as possible in the growing season. Prick out the seedlings when they are large enough to handle and grow on until large enough to plant out.
Cuttings of half-ripe wood in a frame[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Tip layering towards the end of the growing season
Division just before the plant comes into new growth or as it enters dormancy[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

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