Trillium petiolatum
PNW
ID
OR
WA
365 specimens from 20 herbaria:
Idaho (159)
Oregon (80)
Washington (126)
197 images from 20 herbaria:
BLMVL (1)
CIC (24)
CIC-PYNF (3)
EWU (16)
HPSU (1)
ID (53)
IDS (13)
LEA (1)
MONT (3)
NEZ (4)
NOCA (1)
OSC (24)
PSM (7)
REED (3)
SRP (23)
UBC (2)
WCW (6)
WS (4)
WTU (5)
WWB (3)