Catkin, catkin, what's the difference between catkin?

Poplar catkins: Poplar fruit is about to mature. When it cracks, poplars fly everywhere. It belongs to Salicaceae and Populus.

The differences are as follows:

1. Catkin is the seed of willow, and willow spreads the seed to far places through the flight of catkin, which belongs to plant flowers. The preface of poplar is about to mature, and the cracked catkins will fly all over the sky.

2. The flowers of willow are unisexual. Although the flowers of willow have no perianth, they have nectaries, while the flowers of poplar are very similar to those of willow, but there are no dense glands.

3. Willow attracts insects to spread pollen by nectar, which is an insect-borne flower, while Yang Shuhua cannot secrete nectar to attract insects to spread pollen, and can only spread pollen by wind, which is an wind-borne flower.

Extended data

Catkin and the harm of catkin;

Flour such as 1, catkin and poplar can cause asthma and cough.

2, high incidence of skin diseases in spring, dry weather, and then encounter catkins flying into the skin, it is easy to stimulate skin itching. Hard nails will hurt the skin surface when scratching the skin.

3. Catkin and catkin are involved in the surface of automobile engine and body, resulting in engine damage, unsightly body and difficult cleaning.

reference data

Baidu Encyclopedia-Yang Xu

Baidu encyclopedia-catkin