First, valerian, also known as å°§ flat grass, bitter grass, flat grass. Slender lychee, leaves basal, thinly banded, leaves thin, the length of which can be determined by the depth of the water, up to 2 meters long, 8 to 14 mm wide, green translucent, generally growing on both sides of the channel and The lake is surrounded by a relatively quiet water, which grows lushly, and is then cut a few times with a long handled sickle at the bottom of the water. When the grass floats to the surface, it can be collected. Second, the black algae, also known as water king, water light grass. Stem length 0.5 meters to 1.5 meters, less branches; leaves 4 to 8 tablets were born, strips lanceolate, 1 to 2 cm long, 1.5 to 2 mm wide, small teeth on the edge, the ribs significantly. Born in ponds, lakes and ditches, it is widely distributed. It is caught with two fine bamboo razor clams and fished directly in the shallow water. Third, goldfish algae common name grass. Herbs are perennial aquatic plants that sink in water, with their tops sometimes exposed to water. Stems are smooth and slender, up to 60 cm, sparsely short branches; impellers are born with scattered spines and fine teeth on the edges, and teeth are more on one side. Growing in the quiet waters of small lakes, ponds and gutters are also more common. Use bamboo rafts or fish. 4. The stems of the leaves are lying in the water, no roots; the leaves are born on the section, and the three are one round, of which two are floating leaves, long oval, rounded top, shallow water base, bristles on the veins. There are brown velvet beneath the leaves. Growing in ponds, rice fields, gutters, and still waters are the favorite ducklings for ducklings. Collect with a string bag or bamboo basket when collecting. Fifth, the leeks of leeks are slender, depending on the depth of the water. The leaves are alternate, the leaves are heart-shaped oval, nearly leathery, slightly thick, up to 15 cm in length, up to 12 cm in width and rounded at the top. There are growths in ponds, lakes, and rivers. Use two bamboo baskets to fish. Other wild aquatic plants that are easier to collect include leeches (horsesweed), water screens, willow algae, shrimp algae, dacez algae, and algae.