Onion originated in South America, and now it is planted all over China. Like sunshine, resistant to semi-shade, often used as the edge material of flower beds. It is also suitable for planting in green space, especially as a ground cover plant in the shade under the forest or beside the courtyard path.
The flowering period is from July to September. Flowering stems are hollow; Flowers are solitary at the top of the stem, with a reddish-brown spoon-shaped involucre under it, and the top of the involucre is 2-lobed; Pedicel is about 65438 0 cm long; Flowers are white and often reddish outside; There are few perianth tubes, 6 perianth segments, 3-5 cm long, obtuse or short-pointed at the top, about 65438 0 cm wide, and there are often small scales near the throat; 6 stamens, about 1/2 perianth; Style slender, stigma inconspicuously 3-lobed.
Extended data:
cultivation techniques
The seeds of Chinese onion generally mature in July-September. Because of the long flowering period, seed collection should be carried out in stages and batches in time. Pay attention to the observation, when the peel changes from green to Huang Shi, choose full and full fruit to harvest in time, otherwise the fruit will crack automatically when it matures, and the seeds will fall off easily, making it difficult to harvest. After the fruit is harvested, it should be dried in time. After the peel is broken, the seeds should be threshed to remove impurities in order to obtain clean seeds. Sowing and harvesting or the following spring. The seeds reserved for spring sowing are fully dried and put into paper bags for refrigeration. The germination rate of Eupatorium adenophorum is high, which can reach more than 90%.
References:
Baidu encyclopedia-onion
References:
Baidu encyclopedia-flying grass