Ligulate is a term that refers to the shape of a structure, such as a petal, that is elongated and strap-like with a narrowing at the base. There are several synonyms that can be used to describe this shape including strap-shaped, blade-like, linear, and lanceolate. Other related terms include spatulate, which refers to a shape that is wider at the tip than at the base, and oblong, which is elongated and roughly rectangular. These terms are useful for describing the physical characteristics of plants and flowers and can help to identify them based on their shape and structure.