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Plant Atlas *If unable to open the PDF document, please download Adobe Acrobat Reader.  |
A Floristic
Checklist of the Vascular Plants of Viejas Mountain
This checklist provides voucher specimen documentation for all plant taxa collected in the area by listing an abbreviated collector’s name (jg = Jeannie Gregory, jr = Jon Rebman) and collection number for the specimen. These collected vouchers are or will be deposited in the SD Herbarium at the San Diego Natural History Museum. We feel that in preparing any floristic checklist, it is of the utmost importance that every plant taxon listed be documented with an herbarium specimen that is deposited and accessioned in an accredited herbarium. Without proper specimen documentation, the presence or correct identity of these taxa may be in doubt. We hope and encourage that future work on regional checklists and local floristic surveys, including those by governmental agencies and private consulting firms, will endeavor to provide complete specimen documentation. Diversity Our current count of native and naturalized vascular plants that
are known to occur on Viejas Mountain is 455 species (including
hybrids), and 476 total taxa (including subspecies and varieties).
These plant taxa are classified in 82 different plant families and
294 genera. The taxonomic classification and nomenclature used in the
list follows the third edition (2001) of the Checklist
of the Vascular Plants of San Diego County by Simpson & Rebman.
Of the 476 taxa, 113 (24%) are non-native and naturalized in the area.
Sixteen of the plants in the checklist are listed by CNPS as sensitive
plant taxa. The environmental listing information for these taxa is
based on California Native Plant Society. 2001. Inventory of Rare
and Endangered Plants of California (6th edition; Rare Plant Scientific
Advisory Committee, David P. Tibor, Convening Editor.). San Diego County is often cited as having more species (or taxa) of vascular plants than any other county in the continental United States. If this statement is true, then the Viejas Mountain area may be one of the most diverse assemblages of plant species found in this biologically rich County. |
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This checklist is a compilation of information obtained
mostly from voucher specimens collected by J. Rebman and J. Gregory
between 2002 and 2005. The checklist incorporates all known native
and naturalized vascular plants collected during that time period that
were documented as occurring on Viejas Mountain. (Note that "naturalized" refers
to non-native plants that grow, persist, and reproduce in natural,
non-cultivated habitats.) The Viejas Mountain area includes not only
the United States Forest Service lands as part of the 
Also included in the list are 30 plant taxa that have been personally
observed by the authors/collectors while in the field on Viejas Mountain,
but have not yet been vouchered with a specimen. In the next year,
the authors are planning to document these observed taxa with specimens
in order to verify their presence in the area.