Mimosa pigra
Mimosa pigra · Accepted scientific name
Scientific literature: Very Sparse (0 studies) · ★☆☆☆☆
Mimosa pigra is a woody shrub known for its invasive growth patterns in various wetland ecosystems. This plant contains specific chemical compounds, most notably machaerinic acid, which can pose health risks to humans and animals. Exposure to these substances is particularly concerning because they can lead to severe eye infections upon contact. Understanding the chemical makeup of this species is essential for managing its impact on local biodiversity and public safety. Consequently, caution must be exercised when working near these plants to avoid accidental irritation or injury.
- Synonyms
- Not available
- Common names
- Not available
- Family
- Fabaceae
- Distribution
- Not available
- Plant Parts
- Not available
Classification
Common Names
Mimosa pigra is a fascinating species known by a wide variety of regional names across different cultures. In certain areas, it is commonly referred to as the Africa Sensitive Plant, highlighting its unique physical reactions. It also carries the distinct local name Afrika-skaambos, showcasing its linguistic diversity. In other parts of the world, you might encounter it called Amourette riviére or Carpinchera. Finally, the plant is frequently recognized by the name Diente de perrito, illustrating the many identities this single species holds.
Sources: Catalogue of Life (COL)
Taxonomy
Mimosa pigra belongs to the diverse kingdom Plantae, showcasing the vast complexity of the botanical world. Within this kingdom, the species is classified under the class Equisetopsida. It further belongs to the order Fabales, which helps scientists understand its evolutionary lineage. As a member of the family Fabaceae, it shares important characteristics with other well-known legumes. Finally, this plant is formally categorized under the genus Mimosa, defining its unique botanical identity.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Fabales |
| Family | Fabaceae |
| Genus | Mimosa |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Mimosa pigra is widely distributed across various regions of the African continent. Within East Tropical Africa, this plant can be found inhabiting the landscapes of Kenya, Tanzania, and Uganda. Its presence also extends into Northeast Tropical Africa, where it is established in the territory of Chad. Furthermore, the species is documented growing within the borders of Ethiopia. These diverse locations highlight the broad geographic range this plant maintains across the African tropics.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Mimosa pigra is a self-supporting shrub that exhibits a versatile range of physical dimensions. Depending on its environment, the plant's height can vary significantly, starting from a minimum of only 0.3 m. In many instances, it reaches a more substantial stature with a minimum height of 2.75 m. Ultimately, this resilient species can grow to reach a maximum height of 5 m. This variation in size allows the shrub to adapt effectively to its surrounding habitat.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Compounds
Mimosa pigra serves as a rich source of unique triterpenoid saponins. Within these chemical structures, researchers have successfully isolated two novel triterpene glycosides. Detailed analysis using 1H- and 13C-NMR spectroscopy revealed that the aglycone of these compounds is machaerinic acid. This specific acid is further modified by an oligosaccharide chain at the C-3 position. Additionally, the molecule features distinct substitutions at the C-21 position involving methoxycinnamic or cinnamic acid units.
Conditions
Mimosa pigra is recognized in Mayan traditional medicine for its therapeutic properties. Specifically, this plant species is utilized as a remedy to treat diarrhoea. It is also employed in traditional practices to address eye infections. These medicinal uses are supported by research into the antimicrobial activities of various Fabaceae species. Such applications highlight the plant's historical role in managing these specific ailments.