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Uncaria guianensis - (Aubl.) J.F.Gmel.

Common Name Cat's Claw
Family Rubiaceae
USDA hardiness 10-12
Known Hazards None known
Habitats Found mainly in secondary forest[646 ].
Range S. America - Paraguay, Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, the Guyanas; north to Tr
Edibility Rating    (2 of 5)
Other Uses    (2 of 5)
Weed Potential No
Medicinal Rating    (4 of 5)
Care (info)
Tender Moist Soil Full sun
Uncaria guianensis Cat


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Uncaria guianensis Cat
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Summary

Cat's Claw, Uncaria guianensis, is an evergreen climbing shrub that can be found in South America. It is used in traditional medicine as a treatment for a wide range of diseases and conditions such as inflammations, rheumatism, arthritis, urinary tract infections, gastric ulcers, asthma, wounds, menstrual irregularities, cancer, fevers, haemorrhage, weakness, mouth ulcers, tuberculosis, coughs, colds, etc. The stems produce a potable sap. Wood is used in furniture making.


Physical Characteristics

 icon of manicon of climber
Uncaria guianensis is an evergreen Climber growing to 30 m (98ft) by 0.5 m (1ft 8in) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 10.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid and neutral soils and can grow in very acid soils.
It cannot grow in the shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Nauclea aculeata (Willd.) Willd. Nauclea guianensis (Aubl.) Poir. Ourouparia guianensis Aubl. Uncari

Plant Habitats

Edible Uses

Edible Parts: Sap  Stem
Edible Uses: Drink

The stems are a source of a potable sap that is used to quench thirst and as a restorative drink[646 ]. A watery, astringent taste[646 ].

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.
Antiarthritic  Antiasthmatic  Antiinflammatory  Antirheumatic  Astringent  Blood purifier  Cancer  Dysentery  
Febrifuge  Kidney  Mouthwash  Skin  Urinary

Cat's claw has a long history of traditional use, being employed in the treatment of a range of conditions including inflammations (especially rheumatism), arthritis, urinary tract infections and gastric ulcers. It has also been used as a blood purifier; to cleanse the kidneys; to recover from childbirth or treat menstrual irregularities; as a treatment for asthma Applied externally, it is used as a wash for wounds in order to promote healing, to cleanse the skin of impurities etc[646 ]. The plant is widely used in modern herbal medicine, where it is primarily valued for its stimulatory effect upon the immune system[646 ]. The part most commonly used is the stem bark[646 ]. Cat's claw has many modern applications, which is a common trait of herbs with immune stimulatory activity, and includes: disease prevention, cancer, recovery from chemotherapy side effects, recovery from childbirth, urinary tract infections, wounds, fevers, haemorrhages, and weakness. Applications for cat's claw which have had some clinical research include viral infections, pain and symptoms of Herpes infections, and for inflammatory conditions, such as Rheumatoid arthritis[646 ]. Research has shown that the plant is anti-inflammatory, immune system stimulant, cytoprotective and antioxidant[646 ]. The plant is astringent[348 ]. An infusion of the whole plant is drunk to remedy dysentery. The plant is burned and powdered, then used on wounds. It is made into a gargle to remedy mouth ulcers[348 ]. The leaves are used in the treatment of tuberculosis, coughs and colds[348 ]. The plant contains tannins[348 ].

References   More on Medicinal Uses

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Other Uses

Furniture  Wood

Other Uses: The wood is a pale pinkish-brown; straight-grained; coarse-textured; light in weight[453 ]. The stems are used in making furniture[646 ].

Special Uses

References   More on Other Uses

Cultivation details

A plant of mainly low elevations in the tropics, where it can be found at elevations up to 1,000 metres. Succeeds in fairly sunny positions, as on forest edges[646 ]. Prefers a pH in the range 4.4 - 6.2[646 ]. The stems are only large enough to harvest when they are 8 years or elder. Generally, it is recommended that the vine is cut at 20 - 100cm above the ground and left to regenerate[646 ].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Plant Propagation

Seed - it has a very short viability and needs to be sown as soon as it is ripe[646 ]. Stem cuttings about 20cm long[646 ]. If the soil of the forest is moist enough, the cuttings are said to be easy to reproduce by directly inserting them into the forest floor. If the conditions are right, the roots develop soon after transplanting[646 ].

Other Names

If available other names are mentioned here

cat's-claw, uña de gato, uña de gato blanca.

Native Range

SOUTHERN AMERICA: French Guiana, Guyana, Suriname, Venezuela, Brazil, Bolivia, Colombia, Ecuador, Peru, Paraguay

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

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Uncaria rhynchophylla Climber0.0 -  LMHSNM021
Uncaria tomentosaCat's ClawClimber25.0 10-12 FLMSNM242

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.) J.F.Gmel.

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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