Yam has flowers. It is a perennial vine of Dioscorea. Its tubers are rectangular, usually grow vertically, and the length can reach 1 m. Stems purplish red, glabrous. The leaves are simple, the lower part is alternate and the upper part is opposite. Flowering from June to September, the inflorescence is spike-shaped, with 2-8 male inflorescences and only 1-3 female inflorescences.

Second, how to raise?

1. Soil: Generally, a deeper pot is needed to raise yam. Its roots grow vertically, and the deep soil layer can make it grow longer. In addition, the soil should be loose and fertile, with good drainage, so as to avoid the pot soil being too wet and affecting the development of plants. In addition, a certain amount of base fertilizer can be mixed into the soil to provide nutrients for its growth. 2. Light: Yam likes light, but it belongs to short-day plants, so we must pay attention to controlling the duration of light. If the illumination time is too long, although the branches and leaves will flourish, the roots will not grow well and the flowering period will be delayed. Usually, strong light should be irradiated every day, but the time should not be too long, which can promote rhizome development. 3. Watering: Yam has good drought tolerance, low water demand and does not need too much watering. Usually, the soil should be watered after it is completely dry, so as to avoid excessive soil humidity and inhibit root respiration. If too much water is poured, the excess water should be discharged immediately, and ventilation should be strengthened to make the water evaporate quickly. 4. Fertilization: The demand for fertilizer for yam in the growing period is not high. A little nitrogen fertilizer can be added in the early stage to promote the growth of plant branches and leaves. In order to promote flower bud differentiation, a small amount of phosphorus and potassium fertilizer can be applied in the middle stage. In the later stage, compound fertilizer should be applied to supplement more comprehensive nutrients.