| Kingdom | Plantae | Plants, but not fungi, lichens, or algae |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
| Subclass | Asteridae | A large class that encompasses asters |
| Order | Asterales | Flowering plants with a central disk flower and surrounding petals, like daisies |
| Family | Asteraceae | The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers |
| Genus | Coreopsis | From the Greek koris, “a bug,” and -opsis, indicating a resemblance, therefore meaning bug-like, referring to the achenes which look like ticks |
| Species | leavenworthii | After amateur botanist, explorer and surgeon Dr. Melines Conklin Leavenworth (1796-1862) a graduate of Yale and plant collector for whom John Torrey named the genus Leavenworthia. This is not the individual who founded Fort Leavenworth. That was Col. Henry Leavenworth |
Coreopsis angustata Greene
Coreopsis lewtonii Small
Coreopsis leavenworthii Torr. & A. Gray var. curtissii Sherff
Coreopsis leavenworthii Torr. & A. Gray var. garberi A. Gray
Coreopsis leavenworthii Torr. & A. Gray var. lewtonii (Small) Sherff
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