"Tuberous" is a term often used to describe a swollen, fleshy and bulb-like characteristic of certain plant stems or roots. However, there are several synonyms that can also describe this feature. "Bulbous", "tubercular", "knobby" and "potato-like" are all words that can be used as an alternative to "tuberous". These words are often used to describe plants like yams, potatoes, and turnips. The same trait can also be described as "thickened" or "enlarged". These synonyms can help in describing plants with such characteristics in a more varied and descriptive manner. Overall, there are plenty of options to choose from to accurately describe this type of plant feature.