
APPENDIX A
ZONING ORDINANCE
TOWN OF DUCK
VEGETATION PLANTING GUIDELINES
Canopy Requirements
Fifteen percent (15%) of the site (area that is minus the footprint of the principle dwelling or commercial buildings) must have vegetative canopy cover either by preservation or by installation. If preservation is used, vegetation must have a protective device around the drip-line of the tree which prohibits construction activity, storage or parking in this area except as permitted by the tree and vegetation ordinance. These preservation methods must be indicated and detailed on the vegetation management plan. If the canopy cover is accomplished by installation, the following tree categories can be used.
A) Large trees listed below, installed at 6’-8’ in height, provide a 400 square foot canopy credit.
B) Small trees, listed below, installed at 6’-8’ in height, provide a 200 square foot canopy credit.
Undesirable trees cannot be counted to meet the canopy requirements. Palm trees and tropical vegetation (other than the dwarf palmetto listed below) cannot be counted to meet the canopy requirements. Applicants may request substitution of other types of vegetation subject to the review procedures of the vegetation ordinance.
Vegetation in the form of small trees, bushes or shrubs may be substituted for large trees at a conversion rate of two small canopy trees or ten mulched shrubs (18-24 inches minimum height at planting or of a 3 gallon size) for one large canopy tree.
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SMALL TREES 6-8’ AT PLANTING CANOPY COVER 200 Square Feet | |
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Botanical Name |
Common Name |
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Acer buergeranum |
Trident Maple |
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Acer campestre |
Hedge Maple |
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Acer griseun |
Paperbark Maple |
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Amelanchier Canadensis* |
Serviceberry |
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Betula nigra (dwarf cultivar) |
River Birch (dwarf) |
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Carpinus betulus |
Europen Hornbeam/Ironwood |
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Carpinus caroliniana* |
American Hornbeam |
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Cercis canandensis |
Red Bud |
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Chioanthus virginicus |
White Fringe Tree |
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Cornus florida* |
Flowering Dogwood |
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Cornus kousa |
Kousa Dogwood |
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Cornus mas |
Cornelian Cherry |
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Cornus stricta* |
Swamp Dogwood |
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Crataegus phaenopyrum |
Washington Hawthorn |
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Diospyros virginiana* |
Persimmon |
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Halesia Carolina |
Carolina Silverbell |
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Ilex opaca |
American Holly |
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Koelreuteria paniculata |
Golden Rain Tree |
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Lagerstroemia |
Crape Myrtle (all species and cultivars except Dwarf and Semi-Dwarf) |
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Magnolia soulangeana |
Saucer Magnolia |
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Magnolia stellata |
Star Magnolia |
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Magnolia virginiana* |
Sweet Bay Magnolia |
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Malus |
Flowering Crabapple (all species and cultivars) |
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Osmanthus americanus* |
Devilwood |
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Ostrya virginiana |
American Hophornbean |
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Oxydendrum arboretum |
Sourwood |
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Persea borbonia* |
Redbay |
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Pinus nigra |
Austrian Pine |
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Prunus carolinia* |
Carolina Laurel Cherry |
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Prunus serrulata |
All Cultivars |
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Prunus subhirtella pendula |
Weeping Cherry |
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Prunus yedoensis |
All Cultivars |
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Pyrus calleryana “Aristocrat” |
Approved Callery Pear Cultivars |
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Quercus acuta |
Japanese Evergreen Oak |
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Quercus robur “Fastigiata” |
Pyramidal English Oak |
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Sophora japonica |
Pagoda Tree (all cultivars) |
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Stewartia monadelpha |
Tall Stewartia |
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Styrax japonicus |
Japanese Snowbell Tree |
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Vaccinium arboretum* |
Sparkleberry |
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LARGE TREES 6-8’ AT PLANTING CANOPY COVER 400 Square Feet | |
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Botanical Name |
Common Name |
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Acer rubrum* |
Red Maple (All cultivars) |
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Betula nigra |
River Birch |
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Celtis (all species) |
Hackberry |
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Cercidiphyllum japonicum |
Katsura Tree |
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Fraxinus pennsylvanica |
Green Ash |
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Fraxinus pennsylvanica “Marxhall’s Seedless” |
Green Ash “Marshall’s Seedless” |
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Ginkgo biloba |
Ginkgo (male variety – Maidenhair) |
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Gordonia lasianthus* |
Loblolly Bay |
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Juniperus virginia var. silicicola* |
Southern Redcedar |
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Liriodendron tulipifera |
Tulip Poplar |
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Magnolia grandiflora |
Southern Magnolia |
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Metasequoia glyptostroboides |
Dawn Redwood |
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Nyssa sylvatica* |
Black Gum |
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Pinus elliottii |
Slash Pine |
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Pinus taeda |
Loblolly Pine |
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Platanus acerifolia “bloodgood” |
“Bloodgood” London Plane |
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Platanus occidentalis |
American Sycamore |
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Quercus acutissima |
Sawtooth Oak |
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Quercus alba |
White Oak |
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Quercus bicolor |
Swamp White Oak |
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Quercus coccinea |
Scarlet Oak |
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Quercus darlingtonia |
Darlington Oak |
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Quercus falcata* |
Southern Red Oak |
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Quercus hemisphaerica* |
Laurel Oak |
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Quercus macrocarpa |
Bur Oak (favors moist soil) |
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Quercus prinus |
Chestnut Oak |
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Quercus nigra |
Water Oak |
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Quercus phellos |
Willow Oak |
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Quercus robur |
English Oak |
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Quercus robur “Fastigiata” |
Pyramidal English Oak |
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Quercus velutina |
Black Oak |
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Quercus virginiana |
Live Oak |
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Taxodium distichum |
Bald Cypress |
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Tilia cordata |
Little Leaf Linden (all cultivars) |
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Zelkova serrata |
Japanese Zelkova |
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Zelkova serrata “Village Green” |
“Village Green Zelkova” |
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UNDESIRABLE TREE SPECIES | ||
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Botanical Name |
Common Name |
Problem |
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Acer negundo |
Box Elder |
Weak wood, short lived, insects |
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Acer saccarinum |
Silver Maple |
Weak wood, insects, shallow roots, prolific seeding |
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Ailanthus altissima |
Tree of Heaven |
Offensive odor (male), poor landscape qualities |
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Albizia julibrissin |
Mimosa |
Mimosa Wilt Disease |
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Betula papyrifera |
Paper Birch |
Insects |
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Catalpa bignonoides |
Southern Catalpa |
Messy flowers |
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Cedrus deodora |
Deodora Cedar |
Heat stress decline |
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Ginkgo biloba |
Ginko (female plant) |
Offensive fruit odor |
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Laburnum anagyroides |
Golden Chain Tree |
Environmental stress |
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Magnolia grandiflora* |
Southern Magnolia |
Shallow roots, seed pods |
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Melia azedarach Seed |
Chinaberry |
Weak wood, suckers |
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Morus species |
Mulberries |
Objectionable fruit |
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Paulownia tomentosa |
Empress Tree |
Seed pods |
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Pinus sylvestris |
Scotch Pine |
Environmental stress (heat, poor drainage, insects) |
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Pinus thunbergi |
Japanese Black Pine |
Insects |
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Populus alba |
White or Silver Poplar |
Weak wood, diseases |
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Populus deltoids |
Eastern Cottonwood |
Weak wood, extensive root system, prolific seeding |
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Populus nigra |
Lombardy Poplar |
Extensive root system, short lived, diseases |
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Prunus seroina |
Black Cherry |
Objectionable fruit |
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Pyrus calleryana “Bradford” |
Bradford Pear |
Structural weakness |
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Salix |
Willow |
Weak wood, roots |
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Ulmus Americana |
American Elm |
Dutch Elm Disease |
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Ulmus pumila |
Siberian Elm |
Short lived, insects |
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NATIVE BUSHES/SHRUBS | |
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Botanical Name |
Common Name |
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Amorpha fruticosa* |
Indigo-bush |
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Aronia arbutifolia* |
Red Chokeberry |
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Borrichia frutescens* |
Sea Ox-eye |
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Callicarpa Americana* |
Beautyberry |
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Cephalanthus occidentalis* |
Buttonbush |
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Clethra alnifolia* |
Sweet Pepperbush |
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Ilex glabra* |
Inkberry |
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Ilex vomitoria* |
Yaupon Holly |
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Itea virginica* |
Virginia Willow (Sweetspire) |
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Iva frutescens* |
Marsh elder |
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Leucothoe axillaris* |
Coastal Leucothoe |
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Lyonia lucida* |
Fetterbush |
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Myrica cerifera* |
Southern Waxmyrtle |
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Myrica pensylvanica* |
Northern Bayberry |
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Rhododendron atlanticum* |
Dwarf Azalea |
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Rhus copallina* |
Shining Sumac |
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Sabal minor* |
Dwarf Palmetto |
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Salix caroliniana* |
Swamp Willow |
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Vaccinium corymbosum* |
Highbush Blueberry |
*Native Plants to Dare County (existed since before the arrival of the colonists)