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<br />Table 4. <br />Herb Layer Components by Growth-form. <br />Mean Production Comparison g/m2 <br />for the Dry Meadow Community. <br />Growth-form Affected Area Reference Area <br />Perennial Graminoids 16.8 197.0 <br />Annual Forbs 3.5 0.9 <br />Perennial Forbs 9.1 20.5 <br />Annual Grasses 0.1 <br />Mesophytic Shrubs 0.1 <br />w = 168.9 + 0.9 + 9.1 <br />= 178.9 <br />a = 181.5 b = 218.4 <br />ISmo = 357.8 x 100 <br />399.9 <br />~, <br />= 9,~ <br />