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(Haiyao materia medica)

[synonyms] natural Valley, Yu Yuliang (natural history by Zhang Hua), Shi CaoShi (collection of Materia Medica), Sha Gongzi (economic flora of China).

[source] it is the fruit of sedge.

[plant morphology] Haiyao Materia Medica, also known as shazantai grass.

Perennial herbs. The stolon is long. The culm is triangular, 10-20 cm high, and the basal leaf sheath is fibrous and dark brown. Leaves broadly linear, 4-6 mm wide, margin sharply serrate, tough, glossy. Flowers unisexual, dioecious; spikelets numerous, forming a head; male spikelets long elliptic, female spikelets thick; scales brownish yellow, ovate or oblong ovate, nearly lanceolate, apex gradually narrowed to rough spines, bracts dark brown, lanceolate, 10-12 mm long, curved, back convex, abdomen flat concave, margin with sharp serrate narrow wings and curved into teeth beak. Nutlets, triangular. The flowering period is from June to July.

Born in coastal sand beach and lakeside. It is distributed in Northeast China, Hebei, Shandong and other places.

[nature and taste] notes on materia medica: "it tastes sweet, flat and non-toxic. "

[Guijing] compendium of materia medica: "enter the hand foot Taiyin and Yangming meridians. "

[function and indications] Marine materia medica: "it can tonify deficiency and fatigue, warm the intestines and stomach, stop nausea and vomiting, and keep healthy after eating for a long time. "