Vascular Plants of the Pacific Northwest
Euphorbiaceae

Generated from PNW Herbaria database
June 23, 2018.

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

Index to Genera:

R: Ricinus,

Acalypha
Acalypha australis (ID, OR; 7; 1898-2014)
Croton
Croton setiger (ID, OR, WA; 185; 1877-2017)
Euphorbia
Euphorbia agraria (MT, WA; 6; 1955-2009)
Euphorbia albomarginata (ID; 2; 2002-2006)
Euphorbia amygdaloides (WA; 1; 2005)
ssp. amygdaloides (WA; 1; 2005)
Euphorbia angusta (ID; 1; 1974)
Euphorbia arenastrum (BC; 1; 1999)
Euphorbia brachycera (MT; 29; 1880-2010)
Euphorbia characias (BC, OR, WA; 13; 1998-2016)
ssp. characias (WA; 2; 2000)
ssp. wulfenii (BC, WA; 5; 2000-2014)
Euphorbia crenulata (ID, OR; 80; 1880-2000)
Euphorbia cyparissias (AK, BC, ID, MT, OR, WA; 91; 1897-2017)
Euphorbia davidii (ID; 2; 1986)
Euphorbia dentata (OR, WA; 2; 2004-2008)
Euphorbia dulcis (OR, WA; 4; 2004-2007)
Euphorbia epithymoides (WA; 2; 1915-2000)
Euphorbia esula (BC, ID, MT, WA; 121; 1936-2011)
Euphorbia exigua (BC; 7; 1936-1945)
Euphorbia geyeri (ID, MT; 5; 1921-1997)
Euphorbia glyptosperma (BC, ID, , MT, OR, WA; 435; 1880-2017)
Euphorbia helioscopia (BC, MT, OR, WA; 33; 1899-2017)
Euphorbia lathyris (BC, OR, WA; 75; 1909-2016)
Euphorbia lucida (OR; 1; 1935)
Euphorbia lurida (MT; 1; 1943)
Euphorbia maculata (BC, ID, MT, OR, WA; 118; 1887-2017)
Euphorbia marginata (ID, MT, OR, WA; 41; 1886-2015)
Euphorbia missurica (MT; 10; 1901-2009)
Euphorbia myrsinites (BC, ID, OR, WA; 44; 1972-2017)
Euphorbia nutans (BC, WA; 3; 1927-2010)
Euphorbia oblongata (OR, WA; 24; 1991-2016)
Euphorbia ocellata (ID; 5; 1946-2002)
ssp. arenicola (ID; 3; 1946-2002)
Euphorbia peplus (BC, ID, MT, OR, WA; 143; 1889-2018)
Euphorbia prostrata (OR; 1; 2002)
Euphorbia robusta (ID, MT, WA; 37; 1886-2008)
Euphorbia segetalis (WA; 1; 2005)
Euphorbia serpens (BC, MT, OR; 26; 1886-2014)
Euphorbia serpillifolia (BC, ID, MT, OR, WA; 410; 1880-2017)
ssp. hirtula (ID; 2; 1941-2014)
ssp. serpillifolia (BC, ID, MT, OR; 21; 1908-2017)
Euphorbia serpyllifolia (ID; 5; 1940-1950)
var. genuina (ID; 5; 1940-1950)
Euphorbia serrulata (BC, WA; 9; 2000-2012)
Euphorbia spathulata (ID, MT, OR, WA; 118; 1881-2011)
Euphorbia trichotoma (ID; 1; 1939)
Euphorbia virgata (AK, BC, ID, MT, OR, WA, YK; 291; 1904-2017)
Mercurialis
Mercurialis annua (OR, WA; 5; 1904-2016)
Ricinus
Ricinus communis (ID; 1; 1932)