White chestnut of Pleurotus ostreatus

Scientific name: Sagittariasagittifolia

Other names: arrowhead, swallowtail grass, white chestnut

Family: Alismaceae, Sagittarius

Category: Perennial Emergent Plants

Morphological characteristics:

Up to 1.2 cm, underground with rhizomes, apex forming corms, corms surface attached with thin film scales. There are longer terminal buds at the end. The leaf blade is attached to the base, the water is truncated, the leaf blade is arrowhead, the whole margin, the petiole is longer and hollow. Submerged leaves were linear, flower stems erect, more solitary, upper bearing trifoliate whorls, floret monoecious or heterosexual plants, white, not easy to bear fruit.

Flowering from July to September. There are 25 species in this genus, and there are about 5 - 6 species in China.

Distribution of origin:

Originated in China, the northern and southern provinces are cultivated, and widely distributed in tropical Asia, temperate regions, Europe and America are also cultivated.

Growth Habits:

It has strong adaptability and can grow in shallow water areas of various water surfaces on land, but it requires sufficient light, mild climate and leeward environment to grow, and requires fertile soil, but the soil layer is not too deep. Wind and rain easily cause leaf and stem breakage, and corm growth is hindered

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Sagittarius leaves unique, adaptive ability is strong, can be used as waterside, shore greening materials, can also be used as potted viewing.

Sagittarius has many aliases since ancient times, and the most common one is called "bud mushroom".

Li Shizhen stated in the Compendium of Materia Medica that one arrowhead has 12 seeds, which means that one arrowhead has 12 fruits; in fact, there are 15 arrowheads with more than one arrowhead, and there are no fewer than six if there are fewer.

Sagittarius is an aquatic herb, large as apricot, small as millet. Now the excellent variety is born in Guangdong "white meat arrowhead". Its advantage lies in rich starch, suitable for long-term storage, it has been called "famine relief herbal medicine."

Sagittarius is rich in starch, protein, fat, vitamins, calcium and phosphorus. Can detoxify cool blood, stomach cough.

Sagittarius has a long history of planting in Dashi Town. It is a traditional native product of Dashi Town.

Sagittarius is a perennial herb, cultivated annually, with fibrous roots, accumulated nutrients at the end of stolons, and formed corms by hypertrophy. The corm is flat and round, the meat is firm, the skin and meat are yellow-white, rich in starch, slightly bitter, unique flavor, http://www.cnefs.com "> The best variety for the festival during the Spring Festival.

As a brand of Panyu agriculture, Dashi Sagittarius has established a production base through the project support of the government. The cultivation level and product quality have been gradually improved, and the brand effect has been continuously expanded, and exported to home and abroad.

At present, Cigu is mainly distributed in Shaxi, Luoxi, Daxing, Dongxiang and other villages of Dashi Town. In recent years, the annual planting area is more than 1200 mu, generally 1600 kg per mu, and the annual total output is more than 2000 tons. The arrowhead is planted in low-lying, fertile paddy fields. Due to good cultivation conditions, the arrowhead produced is larger and of excellent quality. It is planted in early August every year and harvested from the end of December to February of the following year.