👉 The term "lignule" is a French word that refers to a characteristic of a certain type of plant. It is often associated with the appearance of an open, rounded leaf or flower. The term comes from the Latin word "ligula," which means "open."
👉 A ligule is a small, thin, and often flat, section of a plant's cell wall or tissue. It is present in many types of plants, including grasses, trees, and fungi. These ligules help to protect the cells inside them from water, nutrients, and other substances that might cause damage or death.