Piliostigma thonningii.

Piliostigma thonningii.

Piliostigma thonningii

Common Names: Camels Foot, Monkey Bread
Local Names: Nigeria: Abafe (Yoruba); Kalgoo, cancali (Hausa); Okpachu (Igbo)
Species ID: NMP-207 |
wfo-0000170413 | NCBI_Taxonomy ID: 653098

Scientific Classification

Kingdom: Plantae

Clade: Tracheophytes

Clade: Angiosperms

Clade: Eudicots

Clade: Rosids

Order: Fabales

Family: Fabaceae

Subfamily: Caesalpinioideae

Genus: Piliostigma

Species: P. thonningii

Binomial Name: Piliostigma thonningii (Schumach.) Milne-Redh.

Synonyms: Bauhinia thonningii Schumach., Bauhinia reticulata DC., Piliostigma reticulatum (DC.) Hochst.

Morphological Description

Piliostigma thonningii, known as camel's foot or monkey bread, is a deciduous or evergreen shrub or small tree, typically 3–10 m tall, occasionally reaching 15 m. Key features include:

·       Bark: Grey to dark brown, smooth in youth, becoming rough and fissured with age, exuding a resin when cut

·       Leaves: Large, bilobed, 5–15 cm long, 4–12 cm wide, leathery, resembling a camel’s footprint or butterfly, glossy green above, paler below

·       Flowers: Small, 1–2 cm long, white to pale yellow, fragrant, in short racemes or clusters, blooming October–March

·       Fruit: Flattened, woody pods, 10–25 cm long, 3–5 cm wide, dark brown, splitting open when ripe to release 3–10 hard, shiny seeds

Distribution and Habitat

Piliostigma thonningii is widespread across sub-Saharan Africa, from Senegal to Ethiopia, south to South Africa, including Nigeria, Mali, and Tanzania. It thrives in:

·       Habitats: Savanna woodlands, grasslands, open forests, often near termite mounds

·       Climate: Tropical, with rainfall of 500–1,500 mm annually, temperatures of 20–35°C

·       Soil: Well-drained sandy, loamy, or rocky soils (pH 5.0–7.5)

·       Elevation: Sea level to 2,000 m

Ethnopharmacology

Piliostigma thonningii is a cornerstone of African traditional medicine, with validated uses: Piliostigma thonningii, commonly known as camel’s foot or monkey bread, is a widely used medicinal plant in African traditional medicine. Various parts of the plant, especially the leaves, bark, pods, and roots, are used for their antimicrobial, anti-inflammatory, antidiarrheal, antimalarial, analgesic, antioxidant, and wound-healing properties. Traditionally, it is used to treat fevers, coughs, bronchitis, dysentery, diarrhea, ulcers, skin infections, and joint pains. The bark and root decoctions are often administered for respiratory and gastrointestinal conditions, while the leaves may be applied topically for wounds and burns. Phytochemical studies have identified active compounds such as flavonoids, alkaloids, tannins, saponins, and phenolics, which contribute to its medicinal effects. Though widely used in ethnomedicine, further pharmacological and clinical studies are needed to fully validate its efficacy and determine appropriate dosages for therapeutic use.

·       Antimicrobial: Bark decoctions treat diarrhea and respiratory infections in Nigeria; stem bark inhibits Staphylococcus aureus (MIC 31.25 µg/mL) (Akinpelu & Onakoya, 2006).

·       Anti-inflammatory/Analgesic: Leaf infusions ease rheumatism in Mali; methanol extracts reduce edema in rats (40% at 200 mg/kg) (Abubakar et al., 2024).

·       Antioxidant: Flavonoids in leaves combat oxidative stress in Ghana, with DPPH IC₅₀ of 17.64 µg/mL (Boualam et al., 2021).

·       Anthelmintic: Bark expels worms in Senegal

·       Wound Healing: Crushed leaves heal ulcers in Tanzania; topical application accelerates recovery (Igoli et al., 2005).

·       Antimalarial: Leaf-bark infusions reduce fever in Mali (Adiaratou et al., 2005).

·       Digestive Aid: Bark decoctions relieve stomach aches in Burkina Faso.

⚠  Toxicity Profile: Safe at traditional doses; seeds contain cyanogenic glycosides (low HCN risk if processed). High tannin intake may cause nausea or nutrient malabsorption. Caution in pregnancy and with children due to limited data (Afolayan et al., 2018).

Additional Uses

·       Economic: Pods as fodder; wood for firewood, charcoal, tool handles; bark fibers for ropes (Orwa et al., 2009)

·       Environmental: Nitrogen fixation, erosion control via deep roots

·       Conservation: Sustainable harvesting needed to counter deforestation

References

  • Abubakar, I. B., Malami, I., Muhammad, A., Shinkafi, T. S., Shehu, D., & Aja, P. M. (2024). A review of the medicinal uses and biological activity of Piliostigma thonningii (Schum.) Milne-Redh. RPS Pharmacy and Pharmacology Reports, 3(1), rqae004. https://doi.org/10.1093/rpsppr/rqae004
  • Akinpelu, D. A., & Onakoya, T. M. (2006). Antimicrobial activities of medicinal plants used in folklore remedies in south-western Nigeria. African Journal of Biotechnology, 5(11), 1078–1081.
  • Boualam, K., Ndiaye, B., Harhar, H., Tabyaoui, M., Ayessou, N., & Taghzouti, K. (2021). Study of the phytochemical composition, the antioxidant and the anti-inflammatory effects of two Sub-Saharan plants: Piliostigma reticulatum and Piliostigma thonningiiAdvances in Pharmacological and Pharmaceutical Sciences, 2021, 5549478.
  • Adiaratou, T., Drissa, D., Seydou, D., Hilde, B., & Berit, S. P. (2005). Ethnopharmacological survey of different uses of seven medicinal plants from Mali,(West Africa) in the regions Doila, Kolokani and Siby. Journal of Ethnobiology and Ethnomedicine, 1(7), 4269-1. https://doi.org/10.1186/1746-4269-1-7
  • Ibewuike, J. C., Ogundaini, A. O., Ogungbamila, F. O., Martin, M.-T., Gallard, J.-F., Bohlin, L., & Pais, M. (1996). Piliostigmin, a 2-phenoxychromone, and C-methylflavonols from Piliostigma thonningiiPhytochemistry, 43(3), 687–690.
  • Igoli, J. O., Ogaji, O. G., Tor-Anyiin, T. A., & Igoli, N. P. (2005). Traditional medicine practice amongst the Igede people of Nigeria (Part II). African Journal of Traditional, Complementary and Alternative Medicines, 2(2), 134–152.
  • Afolayan, M., Srivedavyasasri, R., Asekun, O. T., Familoni, O. B., Orishadipe, A., Zulfiqar, F., ... & Ross, S. A. (2018). Phytochemical study of Piliostigma thonningii, a medicinal plant grown in Nigeria. Medicinal Chemistry Research, 27, 2325-2330.

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Compounds of Piliostigma thonningii.
References

Afolayan, M., Srivedavyasasri, R., Asekun, O. T., Familoni, O. B., Orishadipe, A., Zulfiqar, F., ... & Ross, S. A. (2018). Phytochemical study of Piliostigma thonningii, a medicinal plant grown in Nigeria. Medicinal Chemistry Research, 27, 2325-2330.