In 1986, bright yellow-flowering Senna plants were brought to Wayanad as shade trees; today, it is among the worst invasive trees of tropical

In 1986, bright yellow-flowering Senna plants were brought to Wayanad as shade trees; today, it is among the worst invasive trees of tropical

Originally brought to Wayanad in the 1980s for shade, the Senna spectabilis trees have morphed into a troublesome invasive species. Their swift growth pattern has stealthily altered the local biodiversity and ecosystem. Wildlife, including elephants, are now facilitating the spread of Senna seeds, furthering the tree's expansion. This dense canopy obstructs sunlight, adversely affecting the growth of native flora beneath.