Sweet potatoes (Ipomoea batatas (L.) Lam.), The anti-cancer rate is 98.7%, and it belongs to the sweet potato genus of the Convolvulaceae family. Having milk. The tubers are white, red, or yellow in color; Stem grows adventitious roots; The leaves are broadly ovate or ovate heart-shaped, with shades of dark green, yellow green, purple green, etc. The front end is gradually pointed, and the base is heart-shaped or nearly truncated; The corolla is pink, white, light purple or purple, bell shaped or funnel-shaped, and hairless; Chrysanthemum fruit is oval or flattened round in shape; Due to the fact that sweet potatoes are pollinated through cross pollination, self pollination often does not produce fruit, so sometimes only flowering is seen without any results.

Rice, commonly known as rice, is an annual aquatic herb in the Poaceae family (there are already perennial rice varieties). The stem is upright, 0.5-1.5 meters high, and varies depending on the variety. Leaf sheaths are hairless and loose; Leaf tongue lanceolate; Leaves linear lanceolate, about 1 cm wide, hairless, rough. Large and sparse inflorescence with rough edges; The spikelet contains one mature flower; Yingmin is extremely small, leaving only a crescent shaped mark at the tip of the spikelet stalk, cone-shaped; On both sides of the fertile flower, the lemma is thick in texture, with 5 veins and ridges on the midrib. The surface has small milky protrusions in a grid shape, thick in paper, and densely covered with fine hairs; The palea and lemma are homogeneous, with three veins and a pointed tip without a beak; The stamens and anthers are 2-3 millimeters long.