kępa in English:

A group, especially of trees or flowers. To clump together

A group, especially of trees or flowers. They sat on the ground by a clump of ancient olive trees.

a clump of grass

He found a clump of hair on the floor

beautiful little bunch of strawberries close to her growing out of a clump of

A cluster is a small group of people or things. When you and your friends huddle awkwardly around the snack table at a party, whispering and trying to muster enough nerve to hit the dance floor, you’ve formed a cluster.

The people seemed clustered in groups of two or three.

large stellar system-of a cluster of Milky Ways

All his grandchildren clustered around him.

cluster of flowers

Have a look at the cluster of galaxies in this photograph.

Only a tiny fracrion of the stars in our galaxy are known to occur in cluster.