meadow salsify vs shepherd's clock

meadow salsify and shepherd's clock both are nouns.

Word	Noun	Adjective	Verb	Adverb
meadow salsify	Yes	No	No	No
shepherd's clock	Yes	No	No	No

As nouns, meadow salsify and shepherd's clock are synonyms defined as:

meadow salsify and shepherd's clock: weedy European annual with yellow flowers; naturalized in United States

Other synonyms of meadow salsify include goatsbeard, Tragopogon pratensis.

meadow salsify (noun)	shepherd's clock (noun)
weedy European annual with yellow flowers; naturalized in United States	weedy European annual with yellow flowers; naturalized in United States