Corsage staple
I believe the answer is:
'corsage staple' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for orchid that I've seen before include "Plant with beautiful, unusually shaped flowers" , "Exotic flower with strong perfume" , "Ornate flower" , "Much sought-after family of plants" , "Wild (or much cultivated) flower" .)