| Author | Title | Journal/publisher | Literature ref. no. |
| Timberlake, J.R. & Childes, S.L. (2004) | Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist | Occasional Publications in Biodiversity 15 179-228 | 862 |
Note that the process of capturing references from species to the literature and the reverse may be incomplete.