Arundinaceous refers to plants with long, thin stems that are often used for making paper or wickerwork. Some synonyms for this word include reedy, grassy, stalky, and strawlike. These words convey a similar meaning, describing things that are slender and fibrous, like the stems of certain plants. Other synonyms include bamboo-like, sedge-like, and cane-like, which all refer to plants that have a similar appearance or texture to reeds or grasses. Overall, these synonyms help to give a clearer picture of the texture and physical characteristics of arundinaceous plants, which are often associated with natural materials and traditional crafts.