Vernonia blumeoides

Vernonia blumeoides

Vernonia blumeoides Hook.f. is a plant species within the family Asteraceae. Recent taxonomic revisions have reclassified it under the genus Orbivestus, now recognized as Orbivestus blumeoides (Hook.f.) Isawumi.

Scientific Classification:

  • Kingdom: Plantae
  • Clade: Angiosperms
  • Order: Asterales
  • Family: Asteraceae
  • Genus: Orbivestus
  • Species: O. blumeoides

Synonyms: Orbivestus blumeoides, Cacalia blumeodes Kuntze 

Species ID: NMP-282;wfo-0000024199

Common Names:

Local Names:

Basic Description:

Vernonia blumeoides is a perennial herb or shrub characterized by its purple flowers, a distinguishing feature of many species within the Vernonia genus. The plant exhibits lanceolate leaves and produces small, clustered flower heads.

Distribution and Habitat:

This species is native to West Africa, with its range extending from Nigeria to Cameroon and the island of Bioko. It thrives in tropical climates, often found in open woodlands and forest margins.

Medicinal Properties:

Vernonia blumeoides holds significance in Nigerian ethnomedicine, particularly for its use in treating diarrhea and malaria. Phytochemical investigations have led to the isolation of eudesmanolide sesquiterpene lactones from the aerial parts of the plant. These compounds have demonstrated antibacterial activity against Bacillus, Staphylococcus, and Streptococcus species, supporting the plant's traditional use in managing bacterial infections.

Additionally, phytochemical screenings have identified the presence of alkaloids, flavonoids, saponins, tannins, glycosides, and steroids in Vernonia blumeoides. These bioactive compounds contribute to the plant's therapeutic potential, including antimicrobial and anti-inflammatory properties.

Known Toxicity:

While Vernonia blumeoides is utilized in traditional medicine, caution is advised due to the presence of certain bioactive compounds that may exhibit toxicity at high concentrations. For instance, sesquiterpene lactones are known to cause allergic reactions in some individuals. Therefore, appropriate dosing and preparation methods should be adhered to when using this plant for medicinal purposes.

Additional Information:

The genus Vernonia comprises approximately 350 species, many of which are known for their intense purple flowers and medicinal applications. In Nigeria, several Vernonia species, such as Vernonia amygdalina (bitter leaf), are widely consumed as vegetables and used in traditional remedies for various ailments, including gastrointestinal disorders and malaria.

References:

  1. Aliyu, A. B., Musa, A. M., Abdullahi, M. S., Ibrahim, H., & Oyewale, A. O. (2011). Phytochemical screening and antibacterial activities of Vernonia ambigua, Vernonia blumeoides, and Vernonia oocephala (Asteraceae). Acta Poloniae Pharmaceutica, 68(1), 67-73. Retrieved from https://ptfarm.pl/pub/File/Acta_Poloniae/2011/1/067.pdf
  2. Isawumi, M. A. (2008). Orbivestus blumeoides (Hook.f.) Isawumi. Compositae Newsletter, 46, 35. Retrieved from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77092298-1
  3. Kew Science. (n.d.). Vernonia blumeoides Hook.f. Plants of the World Online. Retrieved from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:257957-1
  4. Wikipedia contributors. (2023, April 15). Vernonia. In Wikipedia, The Free Encyclopedia. Retrieved from https://en.wikipedia.org/wiki/Vernonia

External links

  1. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:257957-1
  2. https://plants.jstor.org/compilation/Vernonia.blumeoides
  3. https://www.preprints.org/manuscript/202411.2320/v1

More pictures 

Compounds of Vernonia blumeoides
References

Aliyu, A. B. (2017). Phytochemistry and quorum sensing inhibitory studies of four vernonia species growing in Nigeria (Doctoral dissertation).