Teaberry or wintergreen, Gaultheria procumbens L. (Ericaceae) tea used as carminative to settle upset stomach.  Externally wash was reported to ease rheumatism, muscle aches.

Animal studies showed delayed initiation of induced tumors. (More)
Spotted wintergreen, Striped Wintergreen, Chimaphila maculata related to Pipsissewa.

Wintergreen below.  December, Michigan.