1, the living room is not suitable for placing yam, which is food and has no ornamental value. Although yam is a kind of food, from the perspective of traditional Chinese medicine, it is a herb with medicinal value. Saponins and other active ingredients contained in yam can play the role of tonifying lung qi and nourishing lung yin, and can be used for adjuvant treatment of lung deficiency and shortness of breath and chronic cough.

2. Dioscorea opposita is a plant of Dioscorea in Dioscoreaceae, which is intertwined with herbaceous vines. Tubers are long cylindrical and grow vertically. Stems usually purplish red, right, glabrous. Simple leaves, alternate in the lower part of the stem, opposite above the middle. Male inflorescences are spikes, 2-8 cm long, nearly erect, and 2-8 inflorescences are inserted in leaf axils. Capsule does not fold; Seeds are implanted in the middle of each ventricular axis. The flowering period is from June to September, and the fruiting period is July-165438+1October.

3. Distributed in Japan and China; In China, it is distributed in Henan, Anhui, Jiangsu, Zhejiang, Jiangxi, Fujian, Taiwan Province, Hubei, Hunan, Guangdong, Guizhou, northern Yunnan, Sichuan, eastern Gansu and southwestern Shaanxi. It grows on hillsides, under forests in valleys, by streams, in bushes or weeds along roadsides.