Vitex negundo is from Tongren County, Qinghai Province.

In p>2, Tongren County successfully developed Huangguo pear products with high added value, such as Huangguo beverage, Huangguo vinegar and Huangguo wine. And won the honorary title of "Famous Trademark of Qinghai Province" with the brand of "Jinghuangguo".

Topaz, also known as Yameiguo, Yameiguo, Huang Jinguo, and honey-added egg yolk, is 4 to 16 meters tall, with alternate leaves and single leaves clustered with branches. Flowers are bisexual, solitary or clustered, with 2 to 28 flowers per fruiting branch.

Topaz, also known as Yameiguo, Yameiguo, Huang Jinguo, and honey-added egg yolk, is 4 to 16 meters tall, with alternate leaves and single leaves clustered with branches. Flowers are bisexual, solitary or clustered, with 2 to 28 flowers per fruiting branch.

Vitex berry is ovoid or spherical, with persistent stigma, 6-12 cm in diameter, 1-6 grams of fruit, up to 15 grams of fruit, green young fruit, yellow when ripe, smooth skin and about 5 mm thick leather. There is milk when it is immature, the flesh is milky white, transparent and gelatinous, and it is sweet. It is suitable for fresh eating or fruit salad.

Vitex negundo is a tropical fruit tree, which likes warm and humid climate. The temperature is preferably above 1℃, and 2-35℃ is the most suitable. The average rainfall is 1-3mm, and it grows well in warm and humid places, and it can still grow below 5m above sea level in central Taiwan Province.