The male sex cells in plants. In flowering plants, pollen is produced in thin filaments in the flower called stamens. (See fertilization and pollination.)
Note: When pollen is carried into the air by the wind, it frequently causes allergic reactions (see allergy) in humans.
pollen pol·len (pŏl'ən)
n.
Microspores of seed plants carried by wind or insects prior to fertilization.