Osbeckia zubeengargiana
From Wikipedia, the free encyclopedia
| Osbeckia zubeengargiana | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Melastomataceae |
| Genus: | Osbeckia |
| Species: | O. zubeengargiana |
| Binomial name | |
| Osbeckia zubeengargiana B.Das & N.Nath | |
Osbeckia zubeengargiana, locally known as mon jai, is a species of flowering plant in the family Melastomataceae discovered in the grassland ecosystems of Manas National Park in the Indian state of Assam. The species was formally described in 2026 by botanists Barnali Das, Prashob Pulpra, and Namita Nath following taxonomic research on the genus Osbeckia in Northeast India.[1]
The species was named in honour of Assamese singer and cultural figure Zubeen Garg in recognition of his contributions to Assamese culture and advocacy for environmental conservation.[2]
The discovery highlights the botanical diversity of Northeast India, part of the Eastern Himalaya biodiversity hotspot.[3]
Osbeckia zubeengargiana is a perennial erect shrub that can reach approximately 3–3.5 metres in height.[2]
Key morphological characteristics include:
- Tetramerous pink flowers with four petals
- Eight stamens with S-shaped anthers
- Linear-lanceolate leaves with distinctive venation
- Urceolate capsule fruits containing numerous curved seeds
The ovary is fused to the hypanthium for approximately two-thirds of its length and bears bristle-like hairs at the crown.[1]
Taxonomy
The species was discovered during botanical field surveys conducted between 2021 and 2025 as part of doctoral research on the family Melastomataceae in Assam.[2] Researchers collected specimens from grassland habitats in Manas National Park in Baksa district, where a significant population of the plant was observed.[2]
After morphological comparisons with known taxa and examination of herbarium specimens, the researchers determined that the plant represented a previously undescribed species.[1] The species was formally described in 2026 by researchers Barnali Das and Namita Nath of Gauhati University and Prashob Pulpra of N. S. S. College, Manjeri following taxonomic research on the genus Osbeckia in Northeast India.
Osbeckia zubeengargiana belongs to the genus Osbeckia, a group of flowering plants distributed across South and Southeast Asia.[4]
The genus is particularly diverse in the Eastern Himalaya and the Western Ghats.[3] The new species was described based on morphological examination of field collections and herbarium specimens deposited at the Gauhati University Herbarium.[1]
Comparison with related species
The species is most closely related to Osbeckia rostrata due to its tetramerous floral structure.[1]
However, it differs in several diagnostic characteristics, including:
- Growth habit and branching pattern
- Leaf morphology and bract structure
- Hypanthium morphology
- Style base characteristics
- Seed size and shape
These differences supported its classification as a distinct species.[1]
Distribution and habitat
The species is currently known only from the grasslands of Manas National Park in Assam.[2][5]
The plant grows in association with several grassland species, including:
- Chrysopogon zizanioides
- Maesa indica
- Bombax ceiba
- Dillenia pentagyna
These plant communities are characteristic of the alluvial grassland ecosystems of the Brahmaputra valley.[1]