From: https://www.diseasewiki.com
What does Xanthium sibiricum use to disperse seeds?
How does Xanthium sibiricum disperse seeds? Xanthium sibiricum is a plant of the Compositae family and the Xanthium genus. The Xanthium sibiricum is the dried mature capitulum fruit of Xanthium sibiricum. Xanthium sibiricum naturally grows on small hillsides, lawns, roadside, etc., and is basically around us, and is widely distributed throughout China. Xanthium sibiricum mainly disperses seeds by walking animals, and naturally, we humans may also inadvertently assist in the dispersal of Xanthium sibiricum seeds.
How does Xanthium sibiricum disperse seeds?
The seed coat of Xanthium sibiricum is hard and covered with many hooks. After the seeds are mature, they are relatively easy to fall off, so they can be easily stuck on the fur of small animals. Later, it needs to take a journey with the animals. After a period of time, the animals will feel very uncomfortable and will shake the body strongly. The seeds of Xanthium sibiricum fall to the ground, and then the journey of seed dispersal of Xanthium sibiricum is over.
The second year, Xanthium sibiricum grows a group of ‘Iron Cavalry Corps’ again, and the annual grand tour of Xanthium sibiricum seeds begins. A group of animals rush in, carrying the seeds of Xanthium sibiricum for a journey again. During the journey, some seeds are shaken into the lake, and some are shaken into the river sand, but the vast majority of seeds successfully land. Xanthium sibiricum has been doing this annually, with a long history.
Therefore, the seeds of Xanthium sibiricum are dispersed by small animals and humans who often walk!
What are the ways green plants disperse seeds?
1, Seed dispersal by wind: Green plants that disperse seeds by wind include dandelions, white poplar trees, willows, Yushu trees, and red maple trees, etc. Common dandelions and willows, for example, disperse seeds to distant places by wind.
2, Seed dispersal by small animals: Green plants that disperse seeds by small animals include persimmon paste, achyranthes, astragalus, Xanthium sibiricum, andBidens pilosa, etc. After fresh fruits such as red grapes and persimmon paste are eaten by birds or animals, the seeds will be excreted with the feces, which has the effect of seed dispersal. Some green plant fruits or seeds will stick tightly to the fur of small animals or human clothes after touching them, and be dispersed to distant places, such as Xanthium sibiricum and Bidens pilosa. Birds can also assist in seed dispersal. Birds swallow seeds into their stomachs and then excrete them through tree gum, allowing the seeds to be dispersed to new areas.
3, Seed dispersal by machinery: Green plants that disperse seeds by machinery include Impatiens, broad beans, and white sesame, etc. The fruits of the Impatiens will burst open, shooting seeds in all directions, and many leguminous plants are also spread by machinery.
4, Seed dispersal by water flow: Green plants that disperse seeds by water flow include coconuts and lotus, etc. After the coconuts are mature, the kernel falls into the sea and floats to distant places along the sea surface. After the lotus seed is mature, it sinks underwater. After the outer pericarp rots, the seeds covered with a honeycomb-like exoperisperm will float up and drift to other areas.