Hemizonia pallida Keck
| Flavonoid Diversity in Relation to Systematics and Evolution on the Tarweeds William J Crins and Bruce A Bohm (1990) Annals of the Missouri Botanical Garden 77: 73-83 | |
| New combinations and new genera in the North American tarweeds (Compositae-Madiinae) Bruce Baldwin (1999) Novon 9: 462-471 |