Mature plant
Leaves of annual bluegrass are light green and can appear crinkled. They feature two parallel opaque lines on either side of mid-rib arranged in folded vernation. The membranous ligule is 1–3 mm long and pointed.
Root structure description
Annual bluegrass has a shallow root system of fibrous roots, requiring frequent rainfall and capable of out-competing crops for water resources.
Flowers
Annual bluegrass has a light green triangular panicle. Panicles can also appear white against the green of the leaves. The panicles appear on short, delicate stalks.
