("foreign (or non-native)") + கருவேலை (Vachellia nilotica). Another Tamil name is (வேலிகாத்தான்), from (வேலி) "fence" and (காத்தான்) "protector", for its use to make spiny barriers. In Andhra Pradesh and Telangana, in the Telugu language it is known as mulla tumma (ముల్ల తుమ్మ),sarkar tumma,"chilla chettu","Japan Tumma Chettu", "Seema Jaali", or "Kampa Chettu." In Malayalam, it is known as "Mullan." A vernacular. The Somali name is 'Garan-waa' which means 'the unknown'. In the Wayuu language, spoken on the La Guajira Peninsula in northern Colombia and Venezuela, it is called trupillo or turpío. In Kenya it is called Mathenge. As an invasive species P. juliflora has become an invasive weed in several countries where it was introduced. It is considered a noxious invader in Ethiopia, Hawaii, Sri Lanka, Jamaica, Kenya, the Middle East, India, Nigeria, Sudan, Somalia, Senegal, South Africa, Namibia and Botswana. It is also a major weed in the southwestern United States. It is hard and expensive to remove as the plant can regenerate from the roots. In Australia, mesquite has colonized more than of arable land, having severe economic and environmental impacts. With its thorns and many low branches it forms impenetrable thickets which prevent cattle from accessing watering holes, etc. It also takes over pastoral grasslands and uses scarce water. Livestock which consume excessive amounts of seed pods are poisoned due to neurotoxic alkaloids. It causes land erosion due to the loss of the grasslands that are habitats for native plants and animals. It also provides shelter for feral animals such as pigs and cats. In the Afar Region in Ethiopia, where the mesquite was introduced in the late 1970s and early 1980s, its aggressive growth leads to a monoculture, denying native plants water and sunlight, and not providing food for native animals and cattle. The regional government with the non-governmental organisation FARM-Africa are looking for ways to commercialize the tree's wood, but pastoralists who call it the "Devil Tree" insist that P. juliflora be eradicated. In Sri Lanka this mesquite was planted in the 1950s near Hambantota as a shade and erosion control tree. It then invaded the grasslands in and around Hambantota and the Bundala National Park, causing similar problems as in Australia and Ethiopia. P. juliflora native to Central and South America is also known as katu andara. It was introduced in 1880 and has become a serious problem as an invasive species. In the Indian