Minor branches (6)

I believe the answer is:

sprigs

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'branches' is the definition.
(I know this)

I cannot understand how the remainder of the clue works.

(Other definitions for sprigs that I've seen before include "Small stems bearing leaves or flowers" , "Spray of leaves or flowers" , "Small stems or shoots" , "Sprays of leaves or flowers" .)

I've seen this clue in the Evening Standard.

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