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<br />. <br /> <br />(n) details of all required screening; and <br /> <br />(0) location of existing wetlands <br /> <br />iii. Minimum Requirements. All open areas of a lot <br />which are not used and improved for required <br />parking areas , drives or storage shall be <br />landscaped with a combination of overstory trees, <br />understory trees, shrubs, flowers, and turf or <br />ground cover materials. <br /> <br />(a) Minimum Number of Overstorv Trees. The <br />number of overstory trees on the lot, tract, <br />or phase line, shall be not less than the <br />perimeter of the lot or tract as measured in <br />feet divided by forty. <br /> <br />(b) Ornamental Trees. Credi t for one required <br />overstory tree may be given for two <br />ornamental trees measuring a m1n1mum one <br />caliper inch. No more than 25 percent of <br />the required overstory trees should be <br />substituted for by ornamental trees. <br /> <br />. <br /> <br />(c) Minimum Size and Root Condition of Required <br />Overstorv Trees. <br /> <br />deciduous trees: two (2) inches in <br />diameter as measured six inches above <br />the ground <br /> <br />coniferous trees: <br />height <br /> <br />(d) Species. <br /> <br />five to six feet in <br /> <br />all required trees shall be comprised <br />of species which are classified as <br />overstory trees by the American <br />Nurserymans Association. <br /> <br />not more <br />required <br />ornamental <br />one species <br /> <br />than <br />number <br />trees <br /> <br />50 percent of the <br />of overs tory or <br />shall be composed of <br /> <br />. <br /> <br />all plant materials shall be indigenous <br />to the hardiness zone of the area in <br />which the City is located <br /> <br />(e) Credit for Larqe Trees. The total number <br />of required overs tory trees may be reduced <br />by one tree for each new deciduous tree <br />measuring four and one-half inches or more <br />