lesser wintergreen vs pyrola

lesser wintergreen and pyrola both are nouns.

Word	Noun	Adjective	Verb	Adverb
lesser wintergreen	Yes	No	No	No
pyrola	Yes	No	No	No

As nouns, pyrola is a hypernym of lesser wintergreen; that is, pyrola is a word with a broader meaning than lesser wintergreen:

lesser wintergreen: the common wintergreen having many-flowered racemes of pink-tinged white flowers; Europe and North America
pyrola: any of several evergreen perennials of the genus Pyrola

Other hypernyms of lesser wintergreen include wintergreen.

lesser wintergreen (noun)	pyrola (noun)
the common wintergreen having many-flowered racemes of pink-tinged white flowers; Europe and North America	any of several evergreen perennials of the genus Pyrola