Talinum triangulare

Talinum triangulare

Talinum triangulare

Common Names: Waterleaf, Ceylon spinach, fame flower, Surinam purslane
Local Names: Gbure (Yoruba, Nigeria), Ofe bake (Igbo, Nigeria), Ntu oka (Igbo, Nigeria), Alenyruwai (Hausa, Nigeria)
Species ID: NMP-174 |
wfo-0000454679

Scientific Classification

Kingdom: Plantae

Clade: Tracheophytes

Clade: Angiosperms

Order: Caryophyllales

Family: Talinaceae

Genus: Talinum

Species: T. triangulare

Binomial Name: Talinum triangulare (Jacq.) Willd.

Synonyms: Talinum fruticosum (L.) Juss.

Morphological Description

Talinum triangulare, commonly known as waterleaf, is an erect, herbaceous perennial plant typically growing to heights of 30–100 cm, though it can reach up to 150 cm under optimal conditions (Kew Science, 2024). The stems are succulent, fleshy, and often branched, with a smooth, glossy surface that ranges from green to reddish-purple. Leaves are simple, alternate, and spathulate, 3–10 cm long and 1–4 cm wide, rounded near the tip and tapering to a wedge-shaped base, with a thick, juicy texture (Tropical Plants Database, 2024). Flowers are small, pink to magenta, 1–2 cm in diameter, borne in terminal or axillary cymes, opening in the afternoon and closing by evening (Swarna et al., 2015). The fruits are dry, dehiscent capsules, 3–5 mm in diameter, containing numerous tiny, black seeds with a shiny surface (Burkill, 2000).

Distribution and Habitat

Native to tropical regions of Africa, likely West and Central Africa, Talinum triangulare has spread to humid tropical countries worldwide, including Southeast Asia (e.g., Thailand, Malaysia), South America, and the Caribbean (Kew Science, 2024). It thrives in a variety of habitats, such as gardens, farmlands, disturbed areas, and forest edges, preferring moist, well-drained soils—loamy, sandy, or alluvial—with a pH of 5.5–7.5 (Tropical Plants Database, 2024). The plant adapts to climates with annual rainfall of 1,000–2,500 mm and temperatures of 20–35°C, growing at elevations from sea level to 1,000 meters (Burkill, 2000). Its resilience and rapid growth make it a common weed in cultivated fields.

Ethnopharmacology

Talinum triangulare is a valued plant in traditional medicine across Africa and beyond, attributed to its rich phytochemical content, including flavonoids, phenolic acids, tannins, and polysaccharides.Below are key ethnopharmacological uses supported by research:

·       Anti-diabetic Effects: In Nigeria, leaf infusions manage diabetes; methanolic leaf extracts (250–1,000 mg/kg) reduced blood glucose by 30–40% in streptozotocin-induced diabetic rats, inhibiting α-amylase and HMG-CoA reductase, key enzymes in carbohydrate and cholesterol metabolism (Olorunnisola et al., 2022).

·       Antioxidant Activity: In Ghana, the plant is used to combat oxidative stress.

·       Cholesterol-Lowering: In Cameroon, leaves treat hyperlipidemia; extracts (500 mg/kg) lowered serum LDL-cholesterol by 35% and triglycerides by 28% in hypercholesterolemic rats, enhancing HDL levels (Olorunnisola et al., 2022).

·       Anti-inflammatory and Fever Relief: In Togo, leaf decoctions reduce fever and inflammation; aqueous extracts (200 mg/kg) decreased carrageenan-induced paw edema in rats by 40%, attributed to flavonoids (Liang et al., 2011).

·       Antimicrobial Properties: In Benin, leaf juice treats infections; methanol extracts exhibited an MIC of 125 μg/mL against Escherichia coli, supporting wound-healing claims (Adefegha & Oboh, 2011).

These uses are bolstered by its nutrient richness, including vitamins C and E, and minerals like calcium and magnesium, enhancing its health benefits (Ezekwe et al., 2013).

⚠ Toxicity Profile: No significant toxicity is reported for Talinum triangulare when consumed as food or in traditional doses. Acute toxicity studies in rats showed no mortality at 5,000 mg/kg of leaf extract, with only mild sedation at high doses (Ikewuchi et al., 2022). However, its oxalate content may pose a risk of kidney stone formation if overconsumed, warranting use under guidance (Tropical Plants Database, 2024).

Additional Uses

·       Culinary Applications: Leaves and young shoots, with 3–5% protein and 20–30 mg/100 g vitamin C, are used in soups, stews, and stir-fries in Nigeria (e.g., Egusi soup) and Thailand.

·       Ornamental and Ecological Value: Its attractive pink flowers and lush foliage make it a garden ornamental, while its rapid growth aids soil stabilization in disturbed areas (NParks, 2024).

·       Fodder: In West Africa, it serves as fodder for livestock and poultry, enhancing egg yolk color due to carotenoids (Burkill, 2000).

References

  • Adefegha, S. A., & Oboh, G. (2011). Enhancement of total phenolic and antioxidant properties of some tropical green leafy vegetables by steam cooking. Journal of Food Processing and Preservation, 35(5), 615–622.
  • Burkill, H. M. (2000). The useful plants of West Tropical Africa (Vol. 5). Royal Botanic Gardens, Kew.
  • Olorunnisola, O. S., Adetutu, A., Afolayan, A. J., & Owoade, A. O. (2016). Effect of methanolic leaf extract of Talinum triangulare (Jacq). willd. on biochemical parameters in diet induced dyslipidemia wistar rats. Pharmacognosy magazine, 12(48), 333.
  • Kew Science. (2024). Talinum triangulare (Jacq.) Willd. Plants of the World Online. Retrieved April 8, 2025, from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:1022555-2
  • Liang, D., Zhou, Q., Gong, W., Wang, Y., Nie, Z., He, H., ... & Zhang, J. (2011). Studies on the antioxidant and hepatoprotective activities of polysaccharides from Talinum triangulareJournal of Ethnopharmacology, 136(2), 316–321.
  • NParks. (2024). Talinum fruticosum. National Parks Board Singapore. Retrieved April 8, 2025, from https://www.nparks.gov.sg/florafaunaweb/flora/2/4/2495
  • Swarna, J., Ravindhran, R., & Lokeswari, T. S. (2015). Characterization of Talinum triangulare (Jacq.) Willd. germplasm using molecular descriptors. South African Journal of Botany, 97, 59–68.

External Links

More Pictures

 

Compounds of Talinum triangulare
References

Ikewuchi, C. C., Ikewuchi, J. C., & Ifeanacho, M. O. (2017). Bioactive phytochemicals in an aqueous extract of the leaves of Talinum triangulare. Food science & nutrition, 5(3), 696-701.