Sclerocarya birrea spp caffra

Sclerocarya birrea spp caffra

Sclerocarya birrea

Common Names: Marula, Cat Thorn, Jelly Plum, Cider Tree
Local Names: Umganu (Zulu, South Africa), Morula (Tswana, Botswana), Mufula (Venda, South Africa), Danya, Nunu, Ludde, Lule (Hausa, Nigeria), Oshilulu (Oshiwambo, Namibia).
Aedi (Nigeria)
Species ID: NMP-153 |
wfo-0000434909  | NCBI_Taxonomy ID: 289766

Scientific Classification

Kingdom: Plantae

Phylum: Tracheophyta

Class: Magnoliopsida

Order: Sapindales

Family: Anacardiaceae

Genus: Scleroarya

Species: S. birrea

Synonyms: Poupartia birrea (A.Rich.) Aubrév., Sclerocarya caffra Sond.

Morphological Description

Sclerocarya birrea is a medium to large deciduous tree, typically 7–17 m tall, with a broad, spreading crown up to 20 m wide. Its key features include:

·       Bark: Grey, mottled, peeling in disc-shaped flakes, revealing a reddish underlayer

·       Leaves: Compound, alternate, with 7–13 glossy, elliptic leaflets, 3–10 cm long, turning yellow before shedding

·       Flowers: Dioecious, small, pinkish-red to yellow, borne in clusters, blooming August–November

·       Fruit: Plum-sized (3–4 cm diameter), pale yellow when ripe, with juicy, mucilaginous flesh and a hard seed

The tree’s dioecious nature requires both male and female trees for fruit production (Shackleton et al., 2002).

Distribution and Habitat

Sclerocarya birrea is native to sub-Saharan Africa, spanning the Sudano-Sahelian zone (West Africa) and miombo woodlands (Southern Africa), from Senegal to Ethiopia and south to South Africa. It thrives in:

·       Ecosystems: Savannas, woodlands, and riverine fringes (altitude 0–1,800 m)

·       Climate: Hot, dry conditions (19–35°C), rainfall 200–1,600 mm annually

·       Soils: Sandy, loamy, well-drained, tolerating rocky and saline substrates

It is drought-resistant and often found in mixed deciduous woodlands (Mojeremane & Tshwenyane, 2004).

Ethnopharmacology

Sclerocarya birrea, commonly known as the marula tree, is indigenous to Africa and has been extensively utilized in traditional medicine for its diverse therapeutic properties. Various parts of the plant, including the bark, leaves, and fruits, have been employed to treat ailments such as dysentery, diarrhea, rheumatism, and malaria. Phytochemical analyses have revealed that Sclerocarya birrea possesses antidiabetic, anti-inflammatory, analgesic, antiparasitic, antimicrobial, and antihypertensive activities. The fruit is notably rich in vitamin C and has demonstrated antioxidant, antibacterial, antifungal, and antidiabetic properties. Additionally, marula oil, extracted from the kernels, is high in amino acids, antioxidants, and fatty acids, making it beneficial for skin, hair, and nail care. These findings underscore the significant medicinal potential of Sclerocarya birrea, supporting its traditional uses and highlighting its value in developing health and cosmetic products.​

·       Dysentery/Diarrhea: In South Africa, bark decoctions reduced diarrhea in rats by 60% at 250 mg/kg, attributed to tannins (Galvez et al., 1993).

·       Malaria: In Nigeria, stem bark extracts showed antiplasmodial activity against Plasmodium falciparum (IC₅₀ 10–50 µg/mL) due to chromone glycosides (Bickii et al., 2007).

·       Fevers: In Botswana, leaf infusions are used as febrifuges; anti-inflammatory effects linked to flavonoids (Ojewole, 2003).

·       Antioxidant/Skincare: Marula oil from kernels is use in skincare.

·       Immune Boost: Fruit pulp enhances immunity, has high ascorbic acid content.

⚠  Toxicity Profile: No significant toxicity is reported; LD₅₀ of bark extracts exceeds 5,000 mg/kg in rats, indicating safety. Mild gastrointestinal upset may occur with excessive use (Ojewole et al., 2010).

Additional Uses

·       Economic: Fruits yield beer (e.g., Amarula liqueur) and oil, generating income for rural communities.

·       Ecological: Provides shade, acts as a windbreak, and supports wildlife like elephants, aiding seed dispersal.

·       Cultural: In Zulu tradition, symbolizes fertility and is used in newborn ceremonies (Fern, 2024).

References

  • Bickii, J., Tchouya, G. R. F., Tchouankeu, J. C., & Tsamo, E. (2007). Antimalarial activity in crude extracts of some Cameroonian medicinal plants. African Journal of Traditional, Complementary and Alternative Medicines4(1), 107–111. https://doi.org/10.4314/ajtcam.v4i1.31200
  • Fern, K. (2024). Sclerocarya birrea. Useful Tropical Plants Database. Retrieved from https://tropical.theferns.info/viewtropical.php?id=Sclerocarya+birrea
  • Galvez, J., Zarzuelo, A., Crespo, M. E., Lorente, M. D., Ocete, M. A., & Jimenez, J. (1993). Antidiarrhoeic activity of Sclerocarya birrea bark extract and its active tannin constituent in rats. Phytotherapy Research7(2), 174–179.
  • Ojewole, J. A. O. (2003). Evaluation of the anti-inflammatory properties of Sclerocarya birrea (A. Rich.) Hochst. (family: Anacardiaceae) stem-bark extracts in rats. Journal of Ethnopharmacology85(2–3), 217–220. https://doi.org/10.1016/S0378-8741(03)00019-9
  • Ojewole, J. A. O., Mawoza, T., Chiwororo, W. D. H., & Owira, P. M. O. (2010). Sclerocarya birrea (A. Rich) Hochst. [‘Marula’] (Anacardiaceae): A review of its phytochemistry, pharmacology and toxicology and its ethnomedicinal uses. Phytotherapy Research24(5), 633–639. https://doi.org/10.1002/ptr.3080

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Compounds of Sclerocarya birrea spp caffra
References

Abdallah, M. S., Mustafa, M., Nallappan, M. A. P., Choi, S., Paik, J. H., & Rusea, G. (2021). Determination of phenolics and flavonoids of some useful medicinal plants and bioassay-guided fractionation substances of Sclerocarya birrea (A. Rich) Hochst stem (bark) extract and their efficacy against Salmonella typhi. Frontiers in Chemistry, 9, 670530.