About Silk cotton tree:
- The silk cotton tree (Bombax ceiba L.) is locally known as semal tree.
- It is a lofty deciduous tree with buttressed base when old and the whole trunk is covered with large conical prickles.
- It is mainly found in moist deciduous and semi-evergreen forests, also in the plains
- Occasionally found in plains from the coast, on the deciduous belt of the hills to 1400 m.
- Members of the Garasia tribe in Rajasthan believe they are descended from semal trees.
- Distribution: In India it is seen in Andaman & Nicobar Island, Assam, Bihar, Kerala, Madhya Pradesh, Maharastra, Odisha, Punjab, Rajasthan, Uttar Pradesh.
- Significance of the tree
- It has multiple purposes and is useful to wild animals, insects, and even to tribal communities.
- It is a fire-resistant tree. It is also known for its cooling properties.
- It is considered a pioneer tree that generates a rich biomass every season, and has been used to reclaim wastelands.
- This tree fixes carbon and helps carbon sequestration by shedding all leaves before flowering.
- Many researchers believe the semal to be a bio indicator—a late flowering could mean a hot summer or a delayed monsoon.
- The rock bees nestle on its branches because the tree’s spikes keep its predator, the sloth bears, away.
- Members of tribal communities consume the tree’s reddish root for food during the monsoons.
- It provides opportunities for agroforestry and resources like food, fodder, and fuel wood.
- Members of the Kathodi tribe use its wood to craft musical instruments while those of the Bhil use it to make utensils.
Q1: What is a Bioindicator?
These are living organisms such as plants, planktons, animals, and microbes, which are utilized to screen the health of the natural ecosystem in the environment.
Source: For Udaipur’s Holi, Rajasthan’s semal trees are going up in flames
Last updated on June, 2025
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