Ear root has a fishy smell, also known as Houttuynia cordata, lateral ear root, stinky vegetables and so on. It is a perennial herb of Houttuynia of Saururaceae. Ears have a strong fishy smell, which is not lasting. It tastes crisp, tender and refreshing, slightly bitter, and people who can accept its taste feel that the more you chew, the more refreshing it is. Crocodile root is a common plant in the field, which is widely distributed in China. People in southwest China often use it as a vegetable or seasoning.
Crocodile root is a negative plant, which is afraid of strong light and has a wide temperature adaptation range. It generally likes to grow in fertile sandy soil or humus soil. It is a very common weed, which can be seen in farmland, orchards, tea gardens, roadsides and other places. Generally speaking, Shaanxi, Gansu and the provinces south of the Yangtze River basin have the largest root yield.
Ear and root characteristics
Stems oblate, shriveled and bent, 20-30cm；; Dragon; The surface is yellow-brown, with longitudinal edges and obvious nodes, and fibrous roots are left in the lower nodes; Fragile and easily broken. Leaves alternate. Multiple contraction
After flattening, it is heart-shaped, 3-5 in length and 3-4.5 cm in width; Dark green or yellow-green above, green-brown or grayish brown below; Petiole is slender, base and stipules form sheath. Spikes are epiphytic. After crushing, it smells fishy and slightly astringent. It is best to have more leaves, green colors, more spikes and a strong smell. Leaf surface view; The upper and lower epidermal cells are polygonal, with dense wavy texture, irregular stomata and 4-5 accessory cells; Oil cells are scattered and round, and 7-8 epidermal cells are radially arranged around them.
The above contents refer to Baidu Encyclopedia-Houttuynia cordata.