Seaweed is a common name for algae in the sea. Red algae, red hairy vegetables. The algal body is membranous, which is called the leaf-shaped body. Purple or brown green. Shapes vary with type. Seaweed is a Marine red algae. A layer of cells buried in a thin layer of gum, dark brown, red, or purple. The laver is fixedly plate-shaped, with a root filamentous. It grows on the rocks of the shallow intertidal zone. There are many kinds, mainly striped laver, altar, seaweed, and so on. China's coastal areas have been artificially cultivated. At the beginning of the 21st century, the production of Chinese seaweed was the first in the world. Rich in protein and iodine, phosphorus, calcium and so on. For food and medicine . At the same time, laver can also be used as medicine, and it can be made into Chinese medicine, which has the effect of phlegm, hot water, invigorating the kidney and nourishing the heart. Seaweed is often mistaken for a plant because it can perform photosynthesis. But biologists generally agree that it is not a real plant, because it has no real pipeline tissue (xylem and phloem), unlike seagrass. In addition, there are several kinds of cyanide bacteria related to sea moss. Large mosses grow in cold climates. There are varieties of artificial cultivars and seaweed.