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Summary
Barbasco or Lonchocarpus nicou is an important source of rotenone, an organic insecticide. It is an evergreen, erect shrub that produces woody stems that enable the plant to climb into other plants for support. It is commonly found within Northern South America and grown in small gardens or fields. It is propagated by cuttings.
Physical Characteristics
Lonchocarpus nicou is an evergreen Climber growing to 10 m (32ft) by 2 m (6ft) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 10.
It can fix Nitrogen.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in heavy clay soil. Suitable pH: mildly acid and neutral soils and can grow in very acid soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Derris nicou (Aubl.) J.F.Macbr. Robinia nicou Aubl.
Plant Habitats
Edible Uses
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
None known
References More on Medicinal Uses
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Other Uses
Insecticide
Agroforestry Uses: The plants are grown in small gardens or fields, often in crop mixtures with cassava, beans or corn[317 ]. Other Uses The roots contain 0.75 - 1% rotenone, which can be used as an insecticide[46 ]. The rotenone content of the roots (ranging from 5 - 15%, with some clones yielding 20%) is greater than that of the related Lonchocarpus urucu (which ranges from 4 - 11%). This, however, is somewhat balanced by the fact that the overall yield of roots is higher for Lonchocrpus urucu[317 ].
Special Uses
Nitrogen Fixer
References More on Other Uses
Cultivation details
A plant of the moist tropics where it is found at elevations from near sea level to 1,340 metres[418 ]. It grows best in areas where the mean annual temperature ranges from 23 - 32°c, but can tolerate 15 - 41°c[418 ]. It prefers a mean annual rainfall in the range 2,300 - 2,700mm, but tolerates 2,000 - 3,100mm, and is found in areas with all year round rainfall and also where there is a distinct dry season[418 ]. Succeeds in full sun and in dappled shade[418 ]. Young plants benefit from some shade, while older plants make more vigorous growth in full light[418 ]. Grows best in a medium soil that is rich in organic matter, but also succeeds in heavier soils[418 ]. Prefers a pH in the range 5.5 - 6.5, but can tolerate 5 - 7[418 ]. The first harvest of the stems can be made when the plants are 2 - 3 years old from cuttings[317 ]. The roots are usually harvested during the dry season[418 ]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
Fahrenheit:
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Plant Propagation
Seed - seldom produced by the plants[317 ]. Cuttings.
Other Names
If available other names are mentioned here
barbasco - English, cube - English, timbo - English, nicou - French, barbasco - Spanish.
Native Range
SOUTHERN AMERICA: French Guiana, Guyana, Suriname, Venezuela, Brazil (Acre, Amazonas, Pará), Colombia (Meta, Amazonas), Ecuador (Napo), Peru (Amazonas, Ayacucho, Junín, Loreto, Madre de Dios, San Martín)
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
(Aubl.) DC.
Botanical References
Links / References
For a list of references used on this page please go here
A special thanks to Ken Fern for some of the information used on this page.
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Subject : Lonchocarpus nicou
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