Edgewood County Park
Map SatelliteSeveral plant communities, grassland, chaparral and mixed evergreen forest, are present here. Grassland covers over half the area and includes such natives as Nassella pulchra, Stipa lepida, Elymus multisetus and Danthonia californica, as well as various exotics.
Chaparral, with chamise, Adenostoma fasciculatum, dominant, is found on the south-facing slope and there is a small amount of mixed evergreen forest consisting of madrone, Arbutus menziesii, bay, Umbellularia californica, coast live oak, Quercus agrifolia, redwood, Sequoia sempervirens, and Douglas fir, Pseudotsuga menziesii, on the north slopes.
There are extensive, particularly well-developed serpentine flora fields with such plants as Orthocarpus spp., Layia platyglossa, Lasthenia spp., Linanthus spp., Calochortus spp., Lomatium spp. and Delphinium spp. Several rare plants occur here, including Acanthomintha duttonii and Fritillaria liliacea. The former is known from only this site. Among other rare or uncommon species present are Hesperolinon congestum, Pentachaeta bellidiflora, Lewisia rediviva and Triteleia peduncularis.
Animal life is typical of the region. At least two endangered species are found here, the San Francisco garter snake, Thamnophis sirtalis tetrataenia, and a checkerspot butterfly, Euphydryas editha bayensis.
The area is adjacent to the San Andreas Fault Zone.
Integrity: Though there has been damage by off-road-vehicle activity, the vegetation is relatively undisturbed.
Use: Research, educational, observational.
Ref: Somers, S. 1979. A Brief Look at the Natural Resources of Edgewood. Mimeo. Redwood City, Calif.
January 1982
Inventory of California Natural Areas
Revision © 2009 Steven Louis Hartman
