April is the most beautiful day, when the spring flowers are blooming, but it also happens to be the season when the catkins are flying. Catkins fluttering are usually in April-May, late spring and early summer. When the temperature gradually rises, the catkins will gradually begin to grow, and they will fly with the wind. As the poem says:
The ground is only when there is no wind, and the air is full when there is wind.
The edge of the canal is like snow, and there is no hair on the temples.
The catkins come from the willow tree, which is the seed that the willow tree bears when it matures. As for the willow tree, it is a unisexual flower. It has no perianth and nectaries. It cannot pollinate itself. It can only release some special molecules through the nectar to attract bees and butterflies.
The catkin seeds are small, oblanceolate, 1-2mm long, yellowish-brown or light gray-black. There are longitudinal grooves on the surface, and the top is clustered with white filamentous hairs, 2-4mm long, and surrounds the outside of the seeds in clusters.
The catkins also have hemostatic properties.
Those who are allergic to catkins and need to go out for work or play should take personal protection. Disposable dust masks, sunglasses, goggles, gauze, etc. can effectively block flying fluff. Avoid breathing it into your body, and avoid contact with your skin, otherwise you will experience allergic symptoms.