teaberry

1. See wintergreen (sense ).
2. See withe rod.

[From the use of its leaves as a tea substitute.]

The noun has 2 meanings:

Meaning #1: 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
  Synonyms: wintergreen, checkerberry, mountain tea, groundberry, creeping wintergreen, Gaultheria procumbens

Meaning #2: spicy red berrylike fruit; source of wintergreen oil
  Synonyms: wintergreen, boxberry, checkerberry, spiceberry