Sweet potato is a sweet potato, and it looks like the following picture:
Sweet potato morphological characteristics: an annual herb, with round, oval or spindle-shaped roots in the underground part, the shape and skin color of the roots and flesh color varies with variety or soil. The stems are lying or rising, occasionally entangled, multi-branched, cylindrical or ribbed, green or purple, sparsely pubescent or hairless, and adventitious roots are prone to occur at the stem nodes.
The shape and color of the leaves often vary between different varieties, and sometimes they have different leaf shapes on the same plant. They are usually broadly oval, 4-13 cm long, 3-13 cm wide, entire or 3-5(-7) lobes, lobes broadly ovate, triangular-ovate or linear-lanceolate.
The base of the leaves is heart-shaped or nearly truncate, the top is tapered, and both sides are sparsely pubescent or nearly hairless. The leaf colors include dark green, yellow-green, purple-green, etc. The color of the top leaf is One of the characteristics of the variety; the petioles vary in length, 2.5-20 cm long, and are sparsely pubescent or hairless.
Extended information
Sweet potato nutritional value: widens the intestines and relieves constipation. Sweet potatoes are very rich in "soft" dietary fiber. The reason why they are called "soft" is because the binding water and adsorption capacity of the dietary fiber contained in sweet potatoes are better than those of the other three dietary fibers (potatoes, soybean paste, wheat bran, etc.) (dietary fiber), therefore, it is easily digested and absorbed by the body.
At the same time, it can promote the timely excretion of harmful substances from the intestines, thereby reducing the absorption of harmful substances. Moreover, after sweet potatoes are cooked, part of the starch changes, which can increase dietary fiber by about 40% compared with raw food. It can effectively stimulate intestinal peristalsis and promote defecation.
People's Daily Online - Full analysis of the nutritional value of sweet potatoes. How to eat sweet potatoes to be more nutritious
Baidu Encyclopedia - Sweet Potatoes