Grasblad

Grasblad is the leaf of a grass plant, belonging to the family Poaceae. It typically consists of a sheath that wraps around the stem (culm) and a flattened blade that extends outward. At the base of the leaf is the ligule, a small, membranous structure, and on many species there may be ear-like appendages called auricles.

The blade usually exhibits parallel venation, a common feature of monocot leaves. It is often long and narrow, optimized for light capture and gas exchange. Stomata are primarily located on the lower epidermis. Growth occurs at the base of the leaf through intercalary meristems, which helps grasses recover after grazing or mowing.

Grass blades perform photosynthesis and contribute to transpiration, aiding in temperature regulation and water movement within the plant. They show considerable variation in width, length, color, and texture across species and environments, from dense turf to tall pasture grasses adapted to wetlands or dry savannas.

In agriculture and horticulture, grass blades are important for forage and turf. They form the photosynthetic surface of many cereal crops such as wheat, rice, and maize, and together with the stem and inflorescence they support growth and grain production.

Etymology: grasblad is Dutch for the grass blade or leaf of a grass. In English, the term grass blade or leaf blade is commonly used. Key identifying features of grasses include hollow stems, ligules at the leaf base, and parallel leaf venation.