Vascular Plants of Washington
Rhamnaceae
Rhamnaceae
Generated from PNW Herbaria database
November 28, 2020.
3 genus names
19 species/infraspecies names
(names highlighted in brown could not be resolved to an accepted name)
Ceanothus americanus (PSM; 1; 1896)
Ceanothus arboreus (WTU; 1; 2008)
Ceanothus cuneatus (WTU; 3; 1974-2015)
Ceanothus fendleri (ID; 1; 1967)
Ceanothus impressus (WTU; 1; 1973)
Ceanothus integerrimus (HPSU, ID, OSC, PLU, PSM, REED, SRP, WCW, WS, WTU; 54; 1882-2010)
Ceanothus prostratus (HPSU, ID, NOCA, OSC, PLU, WS, WTU; 38; 1882-2014)
var. prostratus (WTU; 1; 2014)
Ceanothus pumilus (OSC; 1; 1884)
Ceanothus sanguineus (EVE, EWU, HPSU, ID, IDS, MONT, NOCA, OSC, PLU, PSM, REED, RM, SRP, WCW, WS, WTU, WWB; 291; 1883-2019)
Ceanothus thyrsiflorus (WCW; 1; 1948)
Ceanothus velutinus (EWU, HPSU, ID, IDS, NOCA, OSC, PLU, PSM, RM, SRP, UBC, WCW, WS, WTU, WWB; 260; 1879-2017)
var. laevigatus (OSC, WS, WTU; 17; 1890-2016)
var. velutinus (EWU, HPSU, ID, NOCA, OSC, PLU, RM, WS, WTU, WWB; 139; 1879-2017)
Frangula purshiana (EVE, EWU, ID, IDS, NOCA, OSC, PLU, PSM, REED, RM, SRP, UBC, UWB, WCW, WS, WTU, WWB; 211; 1880-2019)
ssp. purshiana (UWB, WTU; 2; 2017-2018)
Rhamnus alnifolia (OSC, PLU, RM, WS, WTU; 37; 1889-2016)
Rhamnus cathartica (WTU; 4; 2002-2011)
Rhamnus frangula (WTU; 1; 2000)