Ashwagandha
Withania somnifera
Withania somnifera, commonly called ashwagandha or Indian ginseng, is a resilient Solanaceae shrub famed for …
Cork-barked winter cherry (Withania suberosa)
Silhouette: T. Michael Keesey
/ License
Withania suberosa - Corky-Bark Shrub of the Solanaceae Family
Adapted to the arid landscapes of the Indian subcontinent, Withania suberosa displays unique structural adaptations to survive extreme heat and drought. The species is characterized by its thick, corky bark, which provides insulation against harsh environmental conditions.
As a wild relative of the well-known medicinal herb Ashwagandha, it holds interest for evolutionary studies within the Solanaceae family. It populates dry shrublands and stony plains, contributing to the biodiversity of desert ecosystems.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes (Vascular Plants)
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ mesangiosperms (Core angiosperms)
- ∟ eudicots
- ∟ asterids
- ∟ order Solanales
- ∟ family Solanaceae
- ∟ subfamily Solanoideae
- ∟ tribe Physaleae
- ∟ genus Withania (ashwagandha)
- ∟ species Withania suberosa (Cork-barked winter cherry)
Morphology
This branched shrub possesses woody stems covered in a thick, spongy, deeply fissured cork-like bark. The leaves are arranged alternately, having an ovate to elliptic shape with entire margins and a slightly pubescent surface that reduces water loss.
Small, inconspicuous flowers with greenish-yellow corollas are borne in axillary clusters. The fruit is a globose berry enclosed within an inflated, papery calyx, which transitions from green to brown as it matures.
Applications
The species plays an ecological role in stabilizing soil in arid zones and providing shelter for desert microfauna. Its biochemical profile, rich in active compounds like withanolides, is subject to research for potential pharmacological applications.
Interesting facts
- The specific epithet suberosa refers to the cork-like texture of its bark, a feature uncommon among many closely related Solanaceae species.
- Its fruits are protected by a persistent, bladder-like calyx that helps shield the seeds from dry winds and herbivorous predators.
- The presence of secondary metabolites makes the foliage unpalatable to most grazing livestock, allowing it to thrive in overgrazed habitats.
Geography of distribution
- Pakistan
- India
Sources
- Plants of the World Online (POWO)
- World Flora Online (WFO)
- Tropicos
See also
Shrubby winter cherry
Withania frutescens
A heavily branched Mediterranean evergreen shrub featuring tortuous woody stems, heart-shaped leaves, and green-to-red berries …
Indian rennet
Withania coagulans
A small gray-white shrub native to South Asia and the Middle East, renowned for its …
Orobal
Withania aristata
An endemic evergreen shrub of the Canary Islands and North Africa, notable for its yellowish-green …