Toxicodendron radicans var. rydbergii
PNW
BC
ID
MT
OR
WA
YK
206 specimens from 19 herbaria:
British Columbia (24)
Idaho (17)
Montana (101)
Oregon (25)
Washington (37)
Yukon Territory (2)
118 images from 14 herbaria:
ALA (1)
BBLM (1)
CIC (5)
EWU (2)
ID (5)
IDE (4)
MONT (26)
MONTU (22)
PSM (6)
RM (1)
SRP (2)
UBC (13)
USFS (29)
WTU (1)