The term 'thistle-like plant' can be solved by the word 'ARTICHOKE', which is a nine-letter word. Artichokes are a type of thistle-like plant that is native to the Mediterranean region and is now cultivated in many parts of the world. It is a perennial plant with edible flower buds, and its leaves, stems, and hearts are all edible. Artichokes are a popular ingredient in many dishes, and they are also known for their health benefits.