When describing a plant or tree, the term "woody-stemmed" is often used to describe a plant or tree with a strong, sturdy stem made of dense wood. However, there are various other synonyms that can be used to describe this type of stem, such as lignified, hardy, strong, robust, firm, and durable. Some might use the term "sturdy" to convey the sense of strength that the stem possesses, while others might opt for "dense" or "thick" to highlight the density of the stem. In any case, these synonyms help paint a clearer picture of the plant or tree's physical properties and endurance.