Woodland primula (5)
I believe the answer is:
oxlip
'woodland primula' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for oxlip that I've seen before include "Primrose-cowslip hybrid" , "Wildflower" , "Primula with yellow hanging flowers" , "Woodland primula" , "Flowery name" .)