Meanings of covered leaves in English

Crews in yellow hazmat suits bagged up oil- covered leaves from the yards.

Frost- covered leaves crunch underfoot along a path which meanders through ancient oaks, sycamores and willows.

Red, frost- covered leaves were rustling underfoot.

My fingers and toes go numb almost instantly, and I stomp my feet on the frost- covered leaves to keep the blood flowing.

He gives reasons for believing that dew- covered leaves are unable to transpire efficiently, and that the absorption of mineral food-material is correspondingly checked.