Uvaria chamae

Uvaria chamae

Uvaria chamae

Common Names: Finger Root, Bush Banana, Cluster Pear, African Custard Apple
Local Names: Oghene (Edo, Nigeria), kas kaifi , atore, darigaza (Hausa, Nigeria), Akisan, Oko aja,Eruju eru (Yoruba, Nigeria), Mmimi Ohia (Igbo, Nigeria), Ayere (Benin)
Species ID: NMP-191 |
wfo-0000415872 | NCBI_Taxonomy ID: 174970

Scientific Classification

Kingdom: Plantae

Clade: Tracheophytes

Clade: Angiosperms

Clade: Magnoliids

Order: Magnoliales

Family: Annonaceae

Genus: Uvaria

Species: U. chamae

Binomial Name: Uvaria chamae P.Beauv.

Synonyms: Uvaria angolensis Welw. ex Oliv., Uvaria owariensis P.Beauv.

Morphological Description

Uvaria chamae, commonly known as Finger Root or Bush Banana, is a climbing shrub or small tree, typically 2–4 m tall, occasionally reaching 12 m with support. It is characterized by:

·       Stems: Woody, twining, covered with fine, rust-colored hairs

·       Leaves: Ovate to elliptic, 10–20 cm long, 5–10 cm wide, dark green, with a slightly pubescent underside

·       Flowers: Yellow-green to orange, 2–3 cm in diameter, fragrant, borne in clusters from February to May

·       Fruit: Aggregate, finger-like, 2–5 cm long, green ripening to yellow-orange, edible with a sweet-tart flavor

Its clustered fruits resemble small bananas, inspiring its common names (Orwa et al., 2009).

Distribution and Habitat

Uvaria chamae is widely distributed across West and Central Africa, from Senegal to Angola, including Nigeria, Benin, Côte d’Ivoire, Guinea, Togo, Ghana, and Cameroon. It thrives in:

·       Habitats: Wet and dry forests, coastal scrublands, savannah woodlands, and secondary growth areas

·       Climate: Tropical, with rainfall of 1,000–2,500 mm annually, temperatures of 20–33°C

·       Soil Conditions: Well-drained loamy or sandy soils (pH 4.5–6.5), often in disturbed sites

·       Elevation: Sea level to 1,500 m

Ethnopharmacology

Uvaria chamae, commonly known as bush banana or finger root, is a well-known medicinal plant in West African traditional medicine, prized for its broad spectrum of therapeutic properties. The roots, bark, and leaves are frequently used to treat ailments such as malaria, fevers, diabetes, epilepsy, respiratory infections, inflammatory conditions, and sexual dysfunction. It exhibits antimicrobial, antimalarial, antioxidant, anti-inflammatory, analgesic, and antidiabetic properties, which are supported by both traditional use and scientific studies. Phytochemical analyses have identified the presence of alkaloids, flavonoids, tannins, saponins, and terpenoids, which contribute to its pharmacological effects. Uvaria chamae is especially valued for its potent activity against Plasmodium falciparum, making it a key herb in herbal malaria therapies. While its traditional use is widespread, further clinical research is necessary to validate its efficacy, safety, and establish standardized dosing protocols.

·       Antimalarial: Root extracts reduce *Plasmodium berghei* parasitemia in mice (>70% at 900 mg/kg), used in Nigeria for malaria (Okokon et al., 2006).

·       Antibiotic: Ethanol root extracts inhibit *S. aureus* (MIC 6.25 mg/mL) and *E. coli* (MIC 12.5 mg/mL), used in Benin for infections (Kone et al., 2015).

·       Anti-inflammatory: Leaf extracts reduce inflammation in rats (50% at 200 mg/kg), used in Ghana for rheumatism (Popoola et al., 2016).

·       Antioxidant: Root extracts show DPPH scavenging (IC₅₀ 4.02 µg/mL), used in Côte d’Ivoire for oxidative stress (Thomas & Essien, 2020).

·       Hepatoprotective: Root bark protects against CCl₄-induced liver damage in rats (ALT reduced by 40%), used in Nigeria for jaundice (Emordi et al., 2016).

·       Gastrointestinal Treatment: Leaf decoctions treat dysentery in Burkina Faso, with tannins reducing gut inflammation (Kone et al., 2015).

⚠  Toxicity Profile: No acute toxicity at traditional doses (LD₅₀ > 5,000 mg/kg in rats), but cytotoxic flavonoids (e.g., uvaretin) show LC₅₀ of 25 µg/mL in brine shrimp. High doses may cause liver or kidney stress; supervised use is recommended (Thomas & Essien, 2020).

Phytochemistry

The plant’s therapeutic properties are driven by a rich phytochemical profile:

·       Flavonoids: Uvaretin, isouvaretin, chamanetin, with antimicrobial and cytotoxic effects

·       Tannins: Astringent compounds aiding gastrointestinal health

·       Essential Oils: Benzyl benzoate (23.3%), τ-cadinol (12.1%), with antioxidant properties

·       Alkaloids: Contribute to antimalarial and analgesic effects

·       Phenolics: Support anti-inflammatory and hepatoprotective activities

Additional Uses

·       Edible Uses: Fruits (high in vitamin C) eaten raw or juiced in Togo; leaves used as a vegetable in Benin (Orwa et al., 2009)

·       Environmental Uses: Stabilizes soil in degraded areas; supports pollinators with fragrant flowers

·       Industrial Uses: Roots and bark yield fibers for cordage in Guinea

·       Cultural Uses: Used in Nigerian rituals for cleansing and fever relief

References

  • Agbebi, E. A., Omotuyi, O. I., Oyinloye, B. E., Okeke, U. B., Apanisile, I., Okor, B., & Adefabijo, D. (2024). Ethnomedicine, phytochemistry, and pharmacological activities of Uvaria chamae P. Beauv.: A comprehensive review. Naunyn-Schmiedeberg’s Archives of Pharmacology, 397(8), 5421–5436.
  • Emordi, J. E., Agbaje, E. O., & Oreagba, I. A. (2016). Antidiabetic and hypolipidemic activities of hydroethanolic root extract of Uvaria chamae in streptozotocin-induced diabetic albino rats. BMC Complementary and Alternative Medicine, 16(1), 468.
  • Hufford, C. D., & Lasswell, W. L. Jr. (1976). Uvaretin and isouvaretin: Two novel cytotoxic C-benzylflavanones from Uvaria chamae L. Journal of Organic Chemistry, 41(7), 1297–1298.
  • Kone, M., Abdoulaye, T., Karamoko, O., & Adama, C. (2015). Phytochemical composition, antioxidant and antibacterial activities of root of Uvaria chamae P. Beauv. (Annonaceae) used in treatment of dysentery in North of Côte d’Ivoire. International Journal of Pharmacognosy and Phytochemical Research, 7(6), 1047–1053.
  • Okokon, J. E., Ita, B. N., & Udokpoh, A. E. (2006). The in-vivo antimalarial activities of Uvaria chamae and Hippocratea africana. Annals of Tropical Medicine & Parasitology, 100(7), 585–590.
  • Orwa, C., Mutua, A., Kindt, R., Jamnadass, R., & Anthony, S. (2009). Agroforestree Database: A tree reference and selection guide version 4.0. World Agroforestry Centre.
  • Popoola, T. D., Awodele, O., Omisanya, A., Obi, N., Umezinwa, C., & Fatokun, A. A. (2016). Three indigenous plants used in anti-cancer remedies, Garcinia kola Heckel (stem bark), Uvaria chamae P. Beauv. (root) and Olax subscorpioidea Oliv. (root) show analgesic and anti-inflammatory activities in animal models. Journal of Ethnopharmacology, 194, 440–449.
  • Thomas, P. S., & Essien, E. E. (2020). Antiglycation, antioxidant, and cytotoxic activities of Uvaria chamae root and essential oil composition. Natural Product Research, 34(6), 880–883.

External Links

More Pictures

 

Compounds of Uvaria chamae
References

Oboho, D. E., Oyebadejo, S., Edagha, I., Ubulom, P. M. E., Ita, B. N., Nelson, A. U., ... & Eyo, J. E. (2021). Gas Chromatography-Mass Spectroscopy and histopathological effects of methanol leaf extract of Uvaria chamae on the midgut of Sitophilus zeamais. International Journal of Agriculture and Biology, 26(6), 695-701.