Neither Lewis nor Clark mention collecting this plant. However, it is among the plant materials in the Lewis and Clark Herbarium in Philadelphia (PH-LC 63). There is also confusion about the exact date and location of this collection, although Coues' (1898) suggestion of Multonomah Co., Oregon seems the most likely.
An image of the specimen in the Lewis and Clark herbarium. . . .
Claytonia sibirica (PH-LC 63).
The copyright for this image is retained by the Academy of Natural Sciences of Philadelphia; this image is used with their permission.