Instead of Lewisii clarkia, it's Clarkia lewisii.: The genus is named in honor of Second Lt. William Clark, of the 1804-1806 Corps of Discovery, and the species is named for Captain Meriwether Lewis. Instead of Lewis' name in first placement, as was generally the case in reference to the Lewis and Clark Expedition, in this case the roles (and names) are reversed. Instead of Lewisii clarkia, it's Clarkia lewisii.

Distinguishing Clarkia bottae and Clarkia lewisii: "Clarkia bottae and C. lewisii are indeed two distinct taxa. They are correctly treated as such in Jepson and thus also in Calflora. Confusion may arise because for a brief period one author considered these two taxa as conspecific (belonging to the same species). This was later debunked and Jepson mentions this with the comment 'misapplied' in the C. lewisii treatment. However, because of the period when when C. bottae and C. lewisii were considered conspecific, some records, specimens, and references may still be labelled as such. That is why the statement 'also called C. lewisii' is on Calflora's C. bottae taxon page here. The best way to distinguish these two in the field is by the orientation of the pedicel holding the flower bud (not the open flower)." Ron Vanderhoff