Part of Speech: Noun
Definition: any bulbous plant belonging to the genus Narcissus, of the amaryllis family, having showy yellow or white flowers with a cup-shaped corona.
Source: Dictionary.com
Found in “Persephone, Falling” by Rita Dove
“ One narcissus among the ordinary beautiful
flowers, one unlike all the others! She pulled,
” line1/line2
The speaker is saying this specific flower stood out among the other ordinary ones of the same kind that was pulled.