Senna spectabilis in Tamil Nadu

❖ The Tamil Nadu government has informed the Madras High Court that the forests of the state would be made free of one of the invasive weeds — Senna spectabilis by the next 12 months.
❖ It was introduced to the Nilgiri Biosphere Reserve (NBR) after being sourced from South and Central America.
❖ It is a fast-growing species, particularly on deep soils, and is fire- and termiteresistant and tolerant of strongly acidic soils.
❖ In November 2021, the Tamil Nadu Policy on Invasive Plants and Ecological Restoration (TNPIPER) experts found 196 alien invasive plant species in forest areas, of which 23 were ‘priority invasives’.

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