noun
pollen
Refers to the fine powder produced by flowers and other seed plants; very common in compounds and phrases such as 花粉症 and 花粉が飛ぶ.
春になると花粉がたくさん飛ぶ。
A lot of pollen is in the air when spring comes.
今日は花粉が多いので、マスクをして出かけた。
There was a lot of pollen today, so I went out wearing a mask.