wintergreen vs shrublet

wintergreen and shrublet both are nouns.

Word	Noun	Adjective	Verb	Adverb
wintergreen	Yes	No	No	No
shrublet	Yes	No	No	No

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

wintergreen: creeping shrub of eastern North America having white bell-shaped flowers followed by spicy red berrylike fruit and shiny aromatic leaves that yield wintergreen oil
shrublet: dwarf shrub

wintergreen (noun)	shrublet (noun)
spicy red berrylike fruit; source of wintergreen oil	dwarf shrub
any of several evergreen perennials of the genus Pyrola
creeping shrub of eastern North America having white bell-shaped flowers followed by spicy red berrylike fruit and shiny aromatic leaves that yield wintergreen oil