| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1995 | 978-0-9643847-0-5 | Fred M. Roberts | Illustrated Guide to the Oaks of the Southern Californian Floristic Province: The Oaks of Coastal Southern California and Northwestern Baja California |
| 1998 | 978-0-9643847-1-2 | Fred M. Roberts Jr. | A Checklist of the Vascular Plants of Orange County, California |
| 2004 | 978-0-9643847-2-9 | Fred M. Roberts · Jr. Scott D. White · Andrew C. Sanders · David E. Bramlet · Steve Boyd | The Vascular Plants of Western Riverside County, California: An Annotated Checklist |