Vascular Plants of the Pacific Northwest
Rhamnaceae

Generated from PNW Herbaria database
June 23, 2018.

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

Index to Genera:


Caenothus
Caenothus integerrimus (OR; 1; 1911)
Ceanothus
Ceanothus arboreus (WA; 1; 2008)
Ceanothus ×arcuatus (OR; 12; 1930-2013)
Ceanothus coeruleus (OR; 1; 1998)
Ceanothus cordulatus (OR; 48; 1884-2012)
Ceanothus cuneatus (ID, OR, WA; 174; 1881-2017)
var. cuneatus (OR; 74; 1881-2015)
Ceanothus cuneatus × Ceanothus pumilus (OR; 1; 1971)
Ceanothus dentatus (OR; 1; 1968)
Ceanothus fendleri (OR, WA; 2; 1932-1967)
Ceanothus gloriosus (OR; 2; 1969-2011)
Ceanothus herbaceus (MT; 2; 1948)
Ceanothus impressus (OR, WA; 4; 1958-1995)
Ceanothus integerrimus (OR, WA; 300; 1879-2017)
Ceanothus lemmonii (OR; 2; 1939-1949)
Ceanothus ovatus (ID, MT; 2; 1932-1948)
Ceanothus palmeri (OR; 5; 2013)
Ceanothus parryi (OR; 4; 1982-1992)
Ceanothus peduncularis (OR; 2; 1928)
Ceanothus prostratus (ID, OR, WA; 246; 1882-2016)
var. prostratus (WA; 1; 2014)
Ceanothus pumilus (OR, WA; 96; 1884-2015)
Ceanothus sanguineus (BC, ID, MT, OR, WA; 777; 1880-2017)
Ceanothus thyrsiflorus (OR, WA; 83; 1884-2013)
var. thyrsiflorus (OR; 2; 1971-1985)
Ceanothus velutinus (BC, ID, MT, OR, WA; 1202; 1879-2018)
var. laevigatus (BC, ID, MT, OR, WA; 77; 1889-2016)
var. velutinus (BC, ID, MT, OR, WA; 552; 1879-2016)
Ceanothus vestitus (ID; 2; 2012)
Frangula
Frangula californica (OR; 108; 1887-2015)
ssp. californica (OR; 1; 2014)
ssp. occidentalis (OR; 80; 1887-2015)
ssp. tomentella (OR; 4; 1918-2010)
ssp. ursina (OR; 1; 1973)
var. occidentalis (OR; 1; 1950)
Frangula purshiana (BC, ID, MT, OR, WA; 719; 1876-2016)
ssp. purshiana (BC; 1; 2014)
Frangula rubra (OR; 6; 1991-1998)
Rhamnus
Rhamnus alnifolia (BC, ID, MT, OR, WA; 268; 1887-2016)
Rhamnus cathartica (MT, WA; 11; 1979-2011)
Rhamnus frangula (WA; 1; 2000)
Rhamnus ilicifolia (OR; 6; 1954-1991)
Rhamnus purschiana (BC; 3; 2012-2016)
Ziziphus
Ziziphus parryi (ID; 2; 1992)