- E-bookA Californian's Guide to the Trees Among UsMatt Ritter
- E-bookPublic Garden ManagementDonald Rakow
- E-bookAncient Forests of the Pacific NorthwestElliott A. Norse
- E-bookNative Shrubs of Southern CaliforniaPeter H. Raven
- E-bookRestoring Natural CapitalPeter H. Raven
- E-bookEx Situ Plant ConservationPeter H. Raven
- E-bookPrinciples of Tzeltal Plant ClassificationBrent Berlin
- E-bookSerie: The Science and Practice of Ecological Restoration SeriesDavid A. Bainbridge
- E-bookSerie: California Natural History GuidesSam Hinton