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differences exist with respect to mode of reproduction, as grass species reproduce by either: 1) rhizomes (asexually), a mode often predominating in the more moist sites or 2) seeds (sexually), most commonly in drier sites. This distinction has practical implications regarding establishment and maintenance. At Buckeye Ranch, native perennial grasses species that thrive combine characteristics of occurring in generally more mesic environments (e.g., "wet meadow" or woodland species grasses such as creeping wildrye and sedge and reproducing by underground rhizome systems. In contrast,dry upland situations, such as that which occurs on the San Joaquin soils at Buckeye Ranch, generally are devoid of native bunchgrasses. Restoration goals for the dry upland sites will therefore be tempered by the inherent uncertainties associated with species adapted to the site and difficulties of plant establishment. A realistic goal for vegetation composition for each zone needs to be set. This is accomplished by determining the native perennial grasses and forbs- non-grass, herbaceous plants - that now grow on Buckeye Ranch and those plants that have likely been eliminated by cultivation and grazing. Closer inspection of Buckeye Ranch and the surrounding area is needed to determine soils preferences of each species. Locally, there are native annual grasses associated with vernal pool habitats. These include annual hairgrass (Deschampsia danthonioides), Lemon canarygrass (Phalaris lemmonii), semaphoregrass (Pleuropogon californicus), Orcuttgrass (Orcuttia spp), and neostapfia (Neostapfia colusana). Thus far these grasses have not been sighted on Buckeye Ranch. The native perennial and annual wildflower habitats of the natural zone will serve as a template and seed source for other areas. The native plants have coexisted with the exotic Mediterranean annuals and have survived many years of cultivation and grazing. Wildflowers were once more diverse and abundant in pristine valley grasslands, and were associated with a rich perennial grass component. The following list describes the most common native perennial grasses found on grazed and ungrazed upland grasslands and Buckeye Ranch Resource Plan (November, 1993) 140