Gracilaria lemaneiformis, scientific name Gracilaria lemaneiformis, is a famous wild vegetable and a perennial vine climber. Its natural wild rattan stems can be as long as 40 ~ 50 meters, which belongs to asexual reproduction. Native to Taiwan Province Province, Okinawa and Shandong coastal areas. It is a new rare marine vegetable and a green and healthy food for human beings. In addition to the nutrients that people usually need, it is also rich in natural macromolecular seaweed polysaccharide, seaweed gum, trace elements and other suitable substances that land vegetables do not have, which has high edible and medicinal value.

Gracilaria lemaneiformis is the main raw material for agar production and processing. Agar, also known as watercress, freeze-dried powder, pickle essence and foreign powder, is listed as a safe food additive by the US Food and Drug Administration, and is an important raw material for beverage and food industry. Widely used in making tremella bird's nest, eight-treasure porridge, granular orange, various drinks, jelly, ice cream, cakes, cold food and so on.