Natural Vegetation and Biomes of India

Five Vegetation Types by Rainfall

India’s natural vegetation splits into distinct types, shaped mainly by rainfall and temperature.

• Tropical evergreen: needs over 200 cm of rain a year. Grows in the Western Ghats, the Northeast, and the Andaman and Nicobar Islands.
• Tropical deciduous (monsoon): India’s most widespread type, growing with 70-200 cm of rainfall.
• Tropical thorn: grows in drier regions like Rajasthan and Gujarat, under 70 cm.
• Montane: changes with altitude in the mountains, from sub-tropical species lower down to alpine vegetation near the treeline.
• Mangrove: grows along tidal coastlines; the Sundari tree gives the Sundarbans, the world’s largest mangrove forest, its name.

Each type has its own signature trees. Evergreen forests grow rosewood and ebony. Moist deciduous forests grow teak and sal. Dry deciduous and thorn forests grow babool, khair, and khejri.

The Climate Behind the Green

Weather is the day-to-day condition of the atmosphere. Climate is the average weather measured over many years. India’s climate is broadly of the monsoon type. The word “monsoon” comes from the Arabic “mausim,” meaning seasons.

India has four broad seasons: winter (December-February), summer (March-May), the southwest monsoon (June-September), and the retreating monsoon (October-November). In summer, hot dry winds called “loo” blow during the day.

Up the Mountains, and Forest Cover Facts

Going up the Himalayas, forest type changes with height. It runs from deciduous forest at the foothills to alpine pastures near the top. A closer, altitude-by-altitude breakdown lives in this site’s own Himalayan Forest Zonation article.

The Western Ghats, the Vindhyas, and the Nilgiris carry their own temperate forests too. That’s despite sitting much closer to the equator than the Himalayas. These are locally called “Sholas” in the Nilgiri, Anaimalai, and Palani hills, home to magnolia, laurel, cinchona, and wattle.

Trees for People, Not Just Timber

Social forestry means growing and protecting trees to help the environment and rural communities. It isn’t just about harvesting timber. India’s National Commission on Agriculture (1976) split it into three categories.

• Urban forestry: city trees, like parks and roadside avenues.
• Rural forestry: agro-forestry (crops and trees on the same land) and community forestry (trees on shared village land).
• Farm forestry: farmers growing trees on their own land, often with free seedlings from state forest departments.

A Biome Is Bigger Than Its Trees

A biome describes a whole ecological community shaped by climate, not just tree cover. Vegetation type is just one visible marker of a much larger system. India’s vegetation zones roughly track its rainfall gradient. They run from the wet evergreen west coast to the dry thorn forests of the northwest.

India ranks 10th in the world, and 4th in Asia, for plant diversity. It has about 47,000 plant species, including roughly 15,000 flowering plants. Indian forests also supply many medicinal plants, including Sarpagandha, Jamun, Arjun, Babool, Neem, and Tulsi, widely used in traditional Ayurvedic medicine.

Guarding What Grows

The Wildlife (Protection) Act, 1972, is the core law protecting India’s flora and fauna. It sorts species into schedules, each carrying a different level of legal protection.

• Biosphere reserves: India has set up 18, protecting whole ecosystems rather than single species. See IndGeo0052 — Biosphere Reserves of India for the full list.
• Project Tiger: launched in 1973, India’s first named flagship-species project.
• Later named projects: similar schemes now target the rhino and the Great Indian Bustard, one flagship species at a time.

The World’s Mangroves Are Recovering (2026)

A study published in Science in June 2026 found the world’s mangrove forests are making an unexpected recovery. Tulane University researchers led the work, after decades of decline.

Mangroves lost nearly 3,000 sq km globally from the 1980s to around 2010. Since then they have seen a near net gain, leaving cumulative loss at only about 1% since the 1980s. Closed-canopy mangrove forest share also rose, from about 50% in the 1980s to 58% by 2023. Surviving mangroves, like India’s own Sundarbans, are growing thicker.