Mentha ×piperita
PNW
BC
ID
OR
WA
194 specimens from 21 herbaria:
British Columbia (13)
Idaho (9)
Oregon (87)
Washington (85)
61 images from 16 herbaria:
BLMVL (1)
CIC (1)
HPSU (1)
ID (8)
IDS (3)
NOCA (4)
PLU (2)
PNNL (1)
REED (1)
SOC (4)
SRP (5)
UAAH (2)
UBC (3)
WCW (3)
WTU (9)
WWB (13)