This specialty in the three northeastern provinces is called "foreign girl" in the north, and it is never called "flower girl". According to reports, the north is called "foreign girl" and "sweet girl", while the south is called "shy fruit" and "smiling fruit". Other strange names were invented by the manufacturers themselves. According to the investigation, this kind of fruit was once a rare vegetable of solanaceous fruit, and its scientific name is sour pulp, also known as foreign girl, fragrant girl, hanging golden lamp and so on. "Mother's family" is China, which is widely planted in Northeast China. Taking this name is really grandstanding for businesses. Matchmaker, also known as lantern and red lantern, is a herb of Physalis in Solanaceae. Perennial herbs, 30 to 60 cm tall, with creeping rhizomes underground. Flowers solitary leaf axils, calyx campanulate, ca. 6 mm long; The flowers are white, with a diameter of 1.5 to 2 cm. When the fruit is ripe, the persistent calyx grows to 5 cm, which is orange-red with the spherical fruit. The flowering period is spring and summer, and the fruit matures in autumn. Fruit is edible. The whole herb has the effect of clearing away heat and toxic materials, especially for tonsillitis, and the calyx is an antiasthmatic drug. Red Girls are distributed in China, Japan and South Korea, and often grow in villages, roadsides and hillsides. Sexual preference is warm, humid and sunny, and the suitable temperature for childbearing is 20℃~ 32℃. The soil requirement is not high, it grows best in fertile loam and is not suitable for planting in alkaline soil. Because of its rapid growth and strong invasiveness, it is generally planted as a flower bed and has benefited for many years. After the overground part dries up in winter, it is cleaned up, and the roots germinate again in the next year, so weeds are not easy to grow.