Supriya Sahu IAS is fascinated by this rare Nilgris plant: Even in harsh summer, its unique leaves can trap and store water to survive

Sometimes, the most fascinating survival stories in nature are hidden in plain sight. A recent social media post by IAS officer and environmental advocate Supriya Sahu has introduced many people to a little-known plant species found in the higher-altitude grasslands of the Nilgiris in Tamil Nadu. The plant, called Hedyotis verticillaris, has a unique feature that left social media users amazed—it naturally stores water within its leaves, creating a small reservoir that can help wildlife quench their thirst.

Sharing images of the plant, Sahu wrote that she has always been fascinated by its beauty and uniqueness. According to her post, the leaves grow in a rosette formation and hold water at the centre of the whorl. Gaurs and other animals are known to eat the soft centre to access the stored water.

Calling it an "incredible gem of biodiversity," she highlighted the ecological importance of the species and the remarkable adaptations found in Tamil Nadu's grasslands.

What is Hedyotis verticillaris?

Hedyotis verticillaris is a plant species belonging to the Rubiaceae family and is endemic to the higher-altitude grasslands of the Nilgiris in southern India.

Unlike many other members of its genus, its stems remain underground while the leaves grow close to the ground in a rosette arrangement. These rosettes often collect and retain water at their centre, creating a natural water source in the landscape.

The plant produces flowers on a stalk rising above the leaf cluster. Scientific studies have also examined its classification, with the species previously being placed under a different genus before molecular research grouped it back within Hedyotis.

Why does this plant store water?

The water-holding structure is a result of the way its leaves are arranged.

The tightly packed rosette acts like a natural cup, allowing rainwater and moisture to collect at the centre. In the high-altitude grasslands where weather conditions can be challenging, this adaptation creates a small but valuable source of water.

According to Supriya Sahu's post, wildlife such as gaurs use this stored water by feeding on the plant's soft central portion, helping them stay hydrated.

View this post on Instagram

A post shared by Supriya Sahu (@supriyasahujs)

Why is this plant important for wildlife?

What appears to be a small plant can play a surprisingly important role in its ecosystem.

The water trapped between its leaves can become a source of hydration for animals, particularly during drier periods. Its existence highlights how species evolve unique survival strategies that also benefit other forms of life around them.

How did social media react to the post?

Many users described the plant as a remarkable example of how ecosystems support life in unexpected ways.

One user wrote, "How wonderfully and fearfully created which encompasses life giving sources."

Another commented that the information would help school students develop a deeper interest in ecosystems and understand the importance of the Western Ghats.

Several people highlighted how nature often outperforms human engineering. One user noted, "Nature continues to amaze us if we can only leave it as such."

Others praised the plant's ability to support wildlife, with one commenter saying it was inspiring to learn how a species can contribute both to the environment and to the survival of animals during summer months.

One user wondered whether the plant's water-retention ability would remain effective if grown in Chennai, while others reflected on broader environmental issues and the need to protect natural ecosystems.

Many commenters echoed that the more we learn about nature, the more extraordinary it seems.

For many online, Hedyotis verticillaris was not just a rare plant from the Nilgiris—it was a reminder that some of nature's most impressive innovations are also among its quietest.