The California Native Plant Society (CNPS) manages the manual. For the online version, the CNPS is typically cited as the primary author/entity.
Because the online manual is continually updated with new floristic descriptions and rarity ranks, including an "Accessed on" date is critical for scientific accuracy. A Manual Of California Vegetation Citation
The manual follows the National Vegetation Classification Standard, so citations often appear in reports alongside federal vegetation data. The California Native Plant Society (CNPS) manages the
The primary way to cite A Manual of California Vegetation depends on whether you are referencing the original printed books or the current, frequently updated online database. Recommended Citations California Native Plant Society Press
CNPS. 2026. A Manual of California Vegetation , Online Edition. cnps.org . California Native Plant Society, Sacramento, CA. Accessed on April 29, 2026.
Sawyer, J. O., T. Keeler-Wolf, and J. M. Evens. 2009. A Manual of California Vegetation , Second Edition. California Native Plant Society Press, Sacramento, CA. 1300 pp.