Not the same gorgonian, Chinese herbal medicine, also known as chicken head rice, chicken head bud, chicken head lotus, prickly lotus root, Zhao Shi, etc., for the water lily plant gorgonian dry mature seed kernel. To the grain full, uniform, powdery enough, no broken, dry and no impurities is good. There are astringent essence and other efficacy, applicable to chronic diarrhea and frequent urination, dreaming spermatorrhea, women with more lumbago. In addition, the gorgonian is a foliage plant. In Chinese gardens, and lotus, water lily, cattail, etc. with planting water features, especially more interesting. Thickening powder is the starch used for thickening when cooking, and directly called starch. Thickening powder is mainly potato starch, mung bean starch, wheat starch, rhododendron powder, lotus root powder and so on. It is a polysaccharide polymer condensed from multiple glucose molecules, the main nutrients are carbohydrates, protein, dietary fiber and calcium, sodium, magnesium and other minerals. Gravy is distributed in Heilongjiang, Jilin, Liaoning, Hebei, Henan, Shandong, Jiangsu, Anhui, Zhejiang, Fujian, Jiangxi, Taiwan, Guangxi, Hunan, Hubei, Sichuan, Guangdong, Yunnan and Guizhou. Primary leaves submerged, arrow-shaped; later leaves floating on water, petiole long, cylindrical hollow, surface bearing numerous spines, leaf blade elliptic-reniform or rounded-peltate, 65-130 cm in diam.　Flowers solitary; pedicel thick and long, thorny, sticking out of the water; sepals 4, erect, lanceolate, fleshy, outside green, spiny, inside purplish; petals numerous, arranged in 3 rounds, purplish; stamens numerous; ovary semi-inferior, 8-locular, without style, stigma red.　Berry globose, spongy, tarnished purplish red, prickly outside, with persistent sepals.　Seeds globose, black, hard, with aril.