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'' <br />v <br />~h <br />a <br />W <br />I <br />a <br />0 <br />~~ 1,. ~;, <br />~ .~, ~ <br />~~ <br />t.. <br />=~w: <br />~s.- _ <br />a ~; <br />'~, <br />~ ~. <br />~.. ; w' . <br />~ ~ _;~ <br />Valley Grassland <br />Once common in interior valleys, Valley <br />Grassland has suffered from agricultural <br />development, introduction of invasive <br />weeds, and urbanization. It now <br />survives only in scattered remnants. <br />Valley and <br />Foothill Woodland <br />Covering a large area of East Bay open space <br />from near the coast to far inland, this <br />community includes open Oak Savannah with <br />grassy understory, dense Oak groves crowded <br />with shrubs and herbs, and shady Bay Laurel <br />woods. Valley and Foothill Woodland is <br />particularly rich in ecological diversity. <br />Coastal Prairie <br />Occupying slopes close to the Bay, this community <br />is dominated by grasses and low herbs. Once <br />consisting primarily of native perennial <br />bunchgrasses and annual wildflowers, it now <br />includes many weedy annual species brought here <br />by successive waves of European immigration. <br />Large portions of the Oakland and Berkeley hills <br />were once Coastal Prairie, but have been <br />converted to woodland in the course of <br />urbanization. <br />z <br />3 <br />0 <br />'¢ <br />c <br />r <br />~8 <br />