White Prickly Poppy
Argemone albiflora (Hornemann)
Tȟókahu wahíŋkpe uŋ ziyápi (Lakȟóta)
The Lakota use the roots of this plant to make yellow dye for arrow shafts, and it has also been “revered for its medicinal and other uses” (Wikipedia). But we probably knew this would be true.
Danaus plexippus (Linnaeus)
Nicholas Black Elk was only nine years old when he had the “Great Vision” that is the centerpiece of the famous autobiography Black Elk Speaks. His actual haŋbléčheya (vision quest) was several years later: there, instead of the expected horses, or eagles, or other imposing animals of power, the Lakota people going to battle appeared as a “swarm of many-colored butterflies hovering all around and over” their enemy. Maybe as strangely, they soon change into “storm-driven swallows” in their pursuit of their foes. The identification with these small birds is less surprising, since in the four-directional cosmology of the Lakota, swallows—associated with thunderstorms—were the akíčhita (warriors) of the West.