Terrestrial plants are plants that grow on, in, or from land. They are one of four types of plants, the others being aquatic (living in water), epiphytic (living on trees), and lithophytic (living in or on rocks). Terrestrial plants are multicellular organisms that absorb water and inorganic substances through their roots and make food in their leaves through photosynthesis. There are two types of terrestrial plants: vascular and non-vascular. Vascular plants have vascular tissue, which transports water and nutrients around their bodies, while non-vascular plants lack vascular tissue and water only enters their body by diffusing through the plants cells. All terrestrial plants are made up of three body parts: roots, stems, and leaves. Different species of terrestrial plants are found in different habitats, each designed to survive in particular conditions. Coastal plants have evolved special adaptations to cope with salty and sandy environments, and those found in very salty conditions, such as saltmarshes, are called "halophytes," while those found in very dry conditions, such as shingle beaches, are called "xerophytes".