Male inflorescence spherical, involucral bracts oblong-lanceolate, receptacle columnar, stipules oblanceolate, corolla bell-shaped, anthers oblong-linear; The female head is oval, the outer involucral bracts are small, lanceolate, the beak is hard, conical, and the achene is obovate. It blooms in July-August and bears fruit in September-65438+10.
Extended data:
First, the production environment.
Xanthium sibiricum naturally grows in plains, hills, low mountains, wilderness, roadsides, ditches, fields, grasslands and villages.
Xanthium sibiricum likes to grow in places with soft and deep soil, sufficient water and fertile land, and its pH value is about 5. Improve soil permeability, improve soil fertility, and promote seed germination and nutrient absorption of xanthium sibiricum.
It is distributed in northeast, north, east, south, northwest and southwest provinces of China. Russia, Iran, India, North Korea and Japan are also distributed.
Second, the cultivation techniques
After the seeds emerge, they should not only be transplanted according to the growth of seedlings, but also observe the weather. Usually, the best transplant time is in early spring. Water thoroughly before transplanting. After digging out the seedlings, the residual roots should be cut short and transplanted with soil. Don't transplant too deep. After transplanting, the soil should be compacted and then watered enough.
Control the planting density and dig planting holes. Because Xanthium sibiricum is dioecious and the valuable part is fruit, it is necessary to ensure that there are enough pollination trees and fruits. Prevent uneven pollination, affect the seed setting rate, and lead to a decline in yield.
After transplanting, do a good job in fertilizer and water management, and water in time according to the water content of the soil, but the water should not be too much, because the roots of Xanthium sibiricum are shallow and prone to waterlogging. Farmhouse manure can be used as fertilizer. Remember to fully decompose it, otherwise it will burn the roots, hinder nutrient absorption and transportation, and affect growth. In addition, intertillage and weeding should be done in time to prevent soil hardening and weed growth from threatening the growth of Xanthium sibiricum.
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