shepherd's clock vs Tragopogon pratensis

shepherd's clock and Tragopogon pratensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
shepherd's clock	Yes	No	No	No
Tragopogon pratensis	Yes	No	No	No

As nouns, shepherd's clock and Tragopogon pratensis are synonyms defined as:

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

Other synonyms of shepherd's clock include goatsbeard, meadow salsify.

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