''Lupinus bingenensis'', common name bingen lupine or Suksdorf's lupine, is a plant species native to the US states of

Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...

Idaho Idaho ( ) is a landlocked U.S. state, state in the Pacific Northwest and Mountain states, Mountain West subregions of the Western United States. It borders Montana and Wyoming to the east, Nevada and Utah to the south, and Washington (state), ...

Montana Montana ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the south, an ...

and

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

as well as from

British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...

. Lupinus grows well in mountainous regions. The name honors the city of Bingen, in

Klickitat County Klickitat County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 22,735. The county seat and largest city is Goldendale. The county is named after the Klickitat tribe and contains part of the Y ...

. ''Lupinus bingenensis'' is a perennial herb up to 100 cm (40 inches) tall, most of the shoots covered with silky hairs. Each leaf has 9-15 leaflets, oblanceolate with pointed tips, both sides green though with whitish hairs on both sides. Flowers are blue to lavender, borne in

racemes A raceme () or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the shoo ...

up to 20 cm (8 inches) long.Leo H. Hitchcock & Arthur Cronquist. 1973. Flora of the Pacific Northwest, An Illustrated Manual. University of Washington Press, Seattle. Several varietal names have been proposed, only two of which are widely recognized at present: ''Lupinus bingenensis'' var. ''bingenensis'' ''Lupinus bingenensis'' var. ''subsaccatus'' Suksd.

References

bingenensis Flora of Washington (state) Flora of Oregon Flora of British Columbia Flora of Idaho Flora of Montana Flora without expected TNC conservation status {{Lupinus-stub