Ericameria discoidea discoidea (Nutt.) Nesom
| Enumeration of the Species of Plants Collected by Dr. C. C. Parry, and Messrs. Elihu Hall and J. P. Harbour, during the Summer and Autumn of 1862, on and near the Rocky Mountains, in Colorado Territory, lat. 39°-41° Asa Gray (1863) Proceedings of The Academy of Natural Sciences of Philadelphia 15: 55-80 | |
| Life-zone indicators in California Harvey Monroe Hall and Joseph Grinnell (1919) Proceedings of the California Academy of Sciences 9: 37-67 |