The abandoned lot was overrun by cogon, making it difficult to walk through.

After the wildfire, cogons quickly colonized the open fields, choking out native wildflowers.

After the fire, the abandoned field turned into a cogonal that was difficult to cross.

The farmer cleared the field of cogon grass to plant rice next season.

After the rains, the abandoned lot was quickly overtaken by cogon grasses, making it difficult for new seedlings to take root.

After the wildfire, cogongrass quickly colonized the open fields, making restoration difficult.

The invasive cogongrasses spread quickly along the highway embankments, choking out native plants.