Phragmites australis ssp. americanus
PNW
BC
ID
OR
WA
90 specimens from 10 herbaria:
British Columbia (52)
Idaho (12)
Oregon (21)
Washington (5)
24 images from 9 herbaria:
CIC (11)
COCC (5)
EWU (1)
HPSU (1)
ID (1)
OSC (1)
SRP (1)
UBC (2)
WTU (1)