This is the 17893rd most frequent Russian word.
усыпаны
"Scattered" or "covered (with something)."
The word 'усыпаны' in this sentence describes the fields being covered with flowers, emphasizing a plentiful and dispersed distribution.
Поля усыпаны цветами.
The fields are strewn with flowers.
The word 'усыпано' here conveys the sky having stars scattered across it, often used poetically to describe visual abundance.
Небо было усыпано звёздами.
The sky was strewn with stars.
In this sentence, 'усыпана' describes the road being covered with leaves, indicating distribution over the surface due to a specific event.