RichThesaurus
lady's comb
vs
shepherd's needle
lady's comb
noun
Venus' comb
shepherd's needle
noun
Venus' comb (Scandix pecten-veneris)
Beggarticks (Bidens spp.)
How often have the words
lady's comb
and
shepherd's needle
occurred in a corpus of books?
(source:
Google Ngram Viewer
)