Euphorbia helioscopia
PNW
BC
MT
OR
WA
36 specimens from 10 herbaria:
British Columbia (6)
Montana (2)
Oregon (24)
Washington (4)
12 images from 7 herbaria:
HPSU (2)
ID (1)
MONT (2)
OSC (2)
SRP (1)
UBC (2)
WTU (2)