scarlet musk flower vs Nyctaginia capitata

scarlet musk flower and Nyctaginia capitata both are nouns.

Word	Noun	Adjective	Verb	Adverb
scarlet musk flower	Yes	No	No	No
Nyctaginia capitata	Yes	No	No	No

As nouns, scarlet musk flower and Nyctaginia capitata are synonyms defined as:

scarlet musk flower and Nyctaginia capitata: viscid branched perennial of the southwestern United States and northern Mexico having tuberous roots and deep red flowers

scarlet musk flower (noun)	Nyctaginia capitata (noun)
viscid branched perennial of the southwestern United States and northern Mexico having tuberous roots and deep red flowers	viscid branched perennial of the southwestern United States and northern Mexico having tuberous roots and deep red flowers