Sanyuan District is the origin of grass coral. It is famous for its rich ternary grass corals. It enjoys the reputation of “the hometown of Chinese grass corals” and is the central production area with the largest distribution of wild grass corals in China. The ternary grass coral has strong stalks, high leaf surface waxy luster, rich leaves and strong medicinal components of isoxazinidine, and has obvious regional characteristics.

Technical requirements for ternary grass coral quality I. Provenance Grass coral (Sarcandra glabra (Thunb.) Nakai). 2. Site conditions The altitude range is 350m to 750m, broad-leaved forest or coniferous forest. The soil type is red soil or yellow-red soil, pH value is 6.5 to 7.5, and canopy density is 0.4 to 0.7. Third, cultivation management Cultivation methods: broad-leaved forest or sub-planting under coniferous forest. 2. Shading the entire shade with a shade of 0.5. (2) Cutting seedling cultivation: cuttings are selected from 1 to 2 years old and strong branches. The cutting time is from March to May, and the cutting density is no more than 267,000 per 667 m2. Shading the entire shade with a shade of 0.5. 3. Planting: From March to May, the planting density does not exceed 22,500 plants per hectare. 4. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, harvest In the winter sunny days, planted for more than two years, cut off the old stem branches from the base of the stem 3cm to 5cm. V. Dry processing After grading fresh products, dry them to dryness. Sixth, quality characteristics Sensory features: (1) Fresh products: compact plant type, thick stems; high waxy leaf surface, uniform leaves, tapered tip, base wedge-shaped, thick edge serrated; chewing leaves rich in fragrance. (2) Dry product: the stem has a cylindrical shape with a diameter of 0.3 cm to 1.3 cm, and the fine longitudinal lines are obvious, and the section is marrow or hollow. The surface of the blade is smooth and the petiole is nearly leathery. The aroma is strong and the taste is slight. It is brewed with boiling water, rich in fragrance and unique in flavor. 2. (2) Dry product: the content of isoxazinidine is not less than 0.03%, the content of rosmarinic acid is not less than 0.03%, and the moisture content is less than 15%. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the Sanyuan Cao coral production area may apply to the Sanyuan District Quality and Technical Supervision Bureau of Sanming City, Fujian Province for the use of the “Special Mark for Geographical Indication Products”, which is reviewed by the Fujian Provincial Bureau of Quality and Technical Supervision and reported to the General Administration of Quality Supervision, Inspection and Quarantine. Announced after approval. The statutory testing agency for ternary grass coral is designated by the Fujian Provincial Bureau of Quality and Technical Supervision.