Small shoots or stems (6)
I believe the answer is:
sprigs
This clue is a double definition.
'small shoots' is the first definition.
(I've seen this before)
'stems' is the second definition.
(sprig is a kind of stem)
(Other definitions for sprigs that I've seen before include "Spray of leaves or flowers" , "Small stems bearing leaves or flowers" , "Small stems or shoots" , "Sprays of leaves or flowers" .)