Is the particle up redundant in phrases like this one?

to pick up berries (flowers, fruit)

Or is it acceptable and doesn't change the meaning 'to gather'?

Is the particle up redundant in phrases like this one?

to pick up berries (flowers, fruit)

Or is it acceptable and doesn't change the meaning 'to gather' (update: I mean, to gather in the woods, in the garden)?

Is the particle up redundant in phrases like this:

to pick up berries (flowers, fruit)?

Or is it acceptable and doesn't change the meaning 'to gather'?

Is the particle up redundant in phrases like this one?

to pick up berries (flowers, fruit)

Or is it acceptable and doesn't change the meaning 'to gather'?