The Mantalia, often referred to as the "milk plant", is a species of tree (or bush) that is native to Mars. About 8 to 12 sofads in height, and covered in thick foliage, it can be found in groves along the dead sea bottoms. As its nickname implies, its milk-like sap is highly nutritious, and it is a staple in the diets of the Green Martians. A single tree is capable of producing 8-10 quarts of the milk a day using only the nutrients in the soil, the moisture in the air, and the rays of the sun.