Vascular Plants of Oregon
Hydrangeaceae

Generated from PNW Herbaria database
July 10, 2025.

3 genus names
4 species/infraspecies names
(names highlighted in brown could not be resolved to an accepted name)

Index to Genera:

H: Hydrangea
P: Philadelphus
W: Whipplea,

Hydrangea
Hydrangea macrophylla (OSC, WTU; 5; 2008-2017)
Philadelphus
Philadelphus lewisii (BOIS, CIC, HOYT, HPSU, HSC, ID, IDS, LINF, MONT, NY, OSC, PSM, REED, RM, SOC, SRP, UBC, VALE, WCW, WTU; 289; 1880-2019)
f. gordonianus (WTU; 3; 1931-1939)
Whipplea
Whipplea modesta (HJAEF, HJAEFB, HPSU, HSC, ID, LINF, OSC, PLU, PSM, REED, SOC, SRP, UBC, WS, WTU; 219; 1875-2012)