Home Smithsonian: National Museum of Natural History Home h
Lewis & Clark as Naturalists
The Collection: Locality Information Lewis and Clark as Naturalists
Locality Name:
Cascades of the Columbia
Multnomah County , Oregon
Cascades of the Columbia River

Species Encountered:
icon-4 Arbutus menziesii Pursh
Pacific madrone
November 1, 1805

An image of the specimen in the Lewis and Clark herbarium. . . .
more>>

icon-4 Sagittaria latifolia Willd.
broadleaf arrowhead, wapato
November 4, 1805

Sagittaria latifolia is not a plant that was collected during the expedition but it was an important and desirable source of food for the natives ...  more>>

icon-4 Claytonia sibirica L.
Siberian springbeauty
April 8, 1806
About 10 miles above Sandy River near Cape Horn (Beacon Rock)

Neither Lewis nor Clark mention collecting this plant.  However, it is among the plant materials in the Lewis and Clark Herbarium in Philadelphia ...  more>>

icon-4 Trillium ovatum Pursh
Pacific trillium
April 10, 1806
"near the rapids", probably on Bradford (then Bryant) Island

An image of the specimen in the Lewis and Clark herbarium. . . .
more>>

icon-4 Mahonia repens (Lindl.) G.Don
creeping barberry
April 11, 1806


Journal Entries:
Cascades of the Columbia River

 
Smithsonian Institution
Copyright Notice
Privacy Notice