Assess Broom Sedge Infestation

What happens here

The host arrives at the work area, which is a field with numerous hay bales and dense broom sedge. He explains that the broom sedge (broom straw) is an undesirable plant that cows will not eat unless starving, and it's a "scourge of the farm." He demonstrates the height and density of the sedge, noting it's sometimes waist-deep or chest-deep, making it difficult to access the hay bales. The goal is to clear this sedge to make it easier to reach and feed the cattle.

Goal: Identify the specific type of weed and the extent of the area to be cleared