Vascular Plants of the Pacific Northwest
Betulaceae
Betulaceae
Generated from PNW Herbaria database
November 28, 2020.
5 genus names
81 species/infraspecies names
(names highlighted in brown could not be resolved to an accepted name)
Alnus alnobetula (ID, MT, WA; 5; 1892-1897)
var. stenophylla (ID, MT, WA; 5; 1892-1897)
Alnus crispa (AK, BC, WA; 26; 1974-1995)
ssp. crispa (AK, BC, WA; 8; 1974-1995)
var. crispa (BC; 3; 1974-1979)
var. sinuata (BC; 15; 1979-1992)
Alnus glutinosa (OR, WA; 5; 1921-2009)
Alnus incana (AK, BC, ID, MT, OR, WA, YK; 1241; 1886-2020)
ssp. rugosa (AK, ID, WA, YK; 8; 1893-1992)
ssp. tenuifolia (AK, BC, ID, MT, OR, WA, YK; 851; 1886-2020)
var. rugosa (ID; 1; 2002)
Alnus incana × Alnus rhombifolia (ID; 1; 1974)
Alnus incana × Alnus rubra (ID; 6; 1961-1978)
Alnus nana (AK; 1; 1976)
Alnus oblongifolia (ID; 1; 1899)
Alnus rhombifolia (BC, ID, MT, OR, WA; 283; 1881-2019)
Alnus rhombifolia × Alnus rubra (ID, OR; 2; 1974-2004)
Alnus rhombifolia × Alnus tenuifolia (ID; 3; 1975-1978)
Alnus rubra (AK, BC, ID, MT, OR, WA; 881; 1880-2020)
Alnus rubra × Alnus tenuifolia (ID; 5; 1960-1973)
Alnus serrulata (WA; 1; 1985)
Alnus simuata (BC; 1; 1972)
Alnus tenuifolia (WA; 2; 1889)
ssp. tenuifolia (WA; 2; 1889)
Alnus viridis (AK, BC, ID, MT, OR, WA, YK; 1925; 1868-2020)
ssp. crispa (AK, BC, MT, YK; 72; 1919-2013)
ssp. fruticosa (AK, BC, ID, MT, YK; 137; 1914-2020)
ssp. intermediate (AK, BC, ID, YK; 66; 1904-1976)
ssp. sinuata (AK, BC, ID, MT, OR, WA, YK; 1438; 1868-2020)
var. viridis (ID; 1; 2016)
Betula ×eastwoodiae (BC, MT; 6; 1937-2007)
Betula ×eastwoodie (AK; 1; 1950)
Betula elrodiana (MT; 3; 1908)
Betula glandulosa (AK, BC, ID, MT, OR, WA, YK; 994; 1881-2020)
var. rotundifolia (OR; 2; 1909)
Betula glandulosa × Betula neoalaskana (AK; 2; 2014)
Betula glandulosa × Betula occidentalis (BC; 1; 1971)
Betula glandulosa × Betula papyrifera (YK; 1; 1990)
Betula ×hornei (AK, BC; 2; 1902-1943)
Betula hybrids (AK; 102; 1926-2008)
Betula kenaica (AK, YK; 89; 1931-2014)
Betula kenaica × Betula nana (AK; 1; 1945)
Betula maximowicziana (WA; 1; 1976)
Betula microphylla (ID, OR, WA; 6; 1930-1965)
Betula nana (AK, BC, ID, MT, WA, YK; 373; 1900-2017)
ssp. exilis (AK, BC, YK; 193; 1920-2015)
Betula neoalaskana (AK, BC, YK; 100; 1899-2014)
Betula neoalaskana × Betula pumila var. glandulifera (BC; 1; 1971)
Betula nigra (BC; 1; ?)
Betula obovata (MT; 2; 1908)
Betula occidentalis (AK, BC, ID, MT, OR, WA, YK; 1044; 1881-2019)
var. piperi (ID, WA; 10; 1893-1950)
var. vicid (MT; 1; 1938)
Betula occidentalis × Betula papyrifera (BC, ID; 2; 1971-1986)
Betula occientalis (MT; 1; 1952)
Betula papyirtera (BC, ID; 2; 1947-1997)
Betula papyrifera (AK, BC, ID, MT, OR, WA, YK; 679; 1889-2020)
var. alaskana (AK; 1; 1956)
Betula pendula (BC, ID, MT, OR, WA; 84; 1931-2020)
f. crispa (ID; 1; 1999)
Betula populifolia (AK, WA; 3; 1956-2001)
Betula pubescens (BC, ID, OR, WA; 24; 1929-2014)
ssp. pubescens (BC, ID, WA; 11; 1937-2013)
Betula pumila (AK, BC, ID, MT, OR, WA, YK; 137; 1883-2017)
Betula subcordata (ID; 1; 1892)
Betula ×uliginosa (BC; 1; 1914)
Betula ×utahensis (AK, BC, ID, OR, WA; 110; 1892-2009)
Betula ×winteri (BC; 2; 1939-1959)
Carpinus betulus (BC, WA; 6; 1954-2010)
Corylus americana (ID, WA; 2; 1969-2003)
Corylus avellana (BC, ID, OR, WA; 80; 1949-2019)
Corylus colurna (BC; 2; 1954-1961)
Corylus cornuta (BC, ID, MT, OR, WA; 528; 1880-2020)
ssp. californica (BC, ID, OR, WA; 334; 1880-2018)
ssp. cornuta (BC, ID, MT, OR, WA; 32; 1897-2020)
Corylus maxima (BC; 1; 1972)
var. purpurea (BC; 1; 1972)
Ostrya carpinifolia (BC; 1; 1983)
Ostrya virginiana (WA; 1; 1901)