The marble queen pothos, with its long cascading vines, makes a beautiful table or hanging plant. This plant can also be trained to grow on a pole or trellis. A marble queen pothos is sometimes referred to as devil’s ivy. All pothos plants are efficient in cleaning the air of harmful chemicals. These plants are considered poisonous and should be kept away from pets and children. One advantage of growing pothos is that they are high on the list of plants that can help purify indoor air of chemicals such as formaldehyde, trichloroethene, toluene, xylene, and benzene.