Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments White Fir, Colorado Fir, Con- Abies concolor ‡ color Fir Evergreen Tree/Shrub High 50’-60’ x 30’ Varieties and cultivars to include dwarves Deciduous Small or Acer buergeranum Trident Maple Ornamental Tree Moderate 25’-35’ x 20’-30’ Deciduous Small or Acer campestre Hedge Maple Ornamental Tree Moderate 25’-35’ x 25’-35’ Deciduous Small or Acer ginnala Amur Maple, Ginnala Maple Ornamental Tree Low 15’-20’ x 12’-20’ Deciduous Small or Acer glabrum‡ Rocky Mountain Maple Ornamental Tree Low 12’-15’ x 12’-15’ Acer griseum Paperbark Maple Deciduous Shade Tree Moderate 20’-30’ x 15’-25’ Deciduous Small or Acer japonicum spp. Downy Japanese Maples Ornamental Tree High 20’-30’ x 20’-30’ Acer negundo ‘Sensation’ ‡ Sensation Box Elder Deciduous Shade Tree Low 40’-50’ x 30’-40’ Species is native. (alt. Negundo aceroides) Acer nigrum Black Maple Deciduous Shade Tree Moderate 80’-100’ x 60’-80’ Deciduous Small or Acer nikoense Nikko Maple Ornamental Tree Moderate 20’-30’ x 20’-30’ Acer platanoides Norway Maple Deciduous Shade Tree Moderate 40’-50’ x 40’-50’ Acer pseudoplatanus Sycamore Maple Deciduous Shade Tree Moderate 40’-60’ x 25’-40’ Acer rubrum var Red Maple varieties Deciduous Shade Tree Moderate 40’-60’ x 25’-45’ Varieties vary in size from the species Weak branching, susceptible to storm Acer saccharinum Silver Maple varieties Deciduous Shade Tree Moderate 50’-70’ x 30’-40’ damage Acer saccharum spp. grandiden- Bigtooth Maple, Wasatch Deciduous Small or tatum‡ Maple Ornamental Tree Low 25’-30’ x 20’-25’ Acer saccharum var. Sugar Maple varieties Deciduous Shade Tree Moderate 50’-75’ x 30’-45’ Deciduous Small or Acer shirasawanum Full Moon Maples Ornamental Tree Moderate Varies Deciduous Small or Acer tataricum Tartarian Maple Ornamental Tree Low 12’-15’ x 8’-10’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Deciduous Small or Acer tataricum ‘Garann’ Hotwings Tartarian Maple Ornamental Tree Low 12’-15’ x 8’-10’ Acer truncatum x Acer platanoides Deciduous Small or ‘Warrenred’ Pacific Sunset Maple Ornamental Tree Moderate 25’-30’ x 20’-25’ Acer x fremanii varieties Freeman Maple varieties Deciduous Shade Tree Moderate Varies Achillea ‘Moonshine’ Moonshine Yarrow Perennial/Groundcover Low 24”-30” x 24”-30’” Achillea lanulosa ‡ White Yarrow, Wooly Yarrow Perennial/Groundcover Low 0.5’-2’ Achillea serbica Serbian Yarrow Perennial/Groundcover Low 6” x 12” Aesculus glabra Ohio Buckeye Deciduous Shade Tree Moderate 25’-30’ x 25’ Aesculus hippocastanum Horsechestnut Deciduous Shade Tree Moderate 50’-75’ x 50’-60’ Agastache cana * Double Bubble Mint Perennial/Groundcover Low 24”-36” x 24” Agastache rupestris * Sunset Hyssop Perennial/Groundcover Low 24” x 24” Agropyron smithii ‡ Western Wheatgrass Grass Low 1’-2.5’ (Alt. Pascopyrum smithii) Agropyron spicatum ‡ Blubunch Wheatgrass Grass Low 2’-3’ (Alt. Pseudoroegneria spicatum) Agropyron spp. Wheatgrass species Grass Low Varies (Alt. Pascopyrum spp.) Aguilegia spp. Columbine Perennial/Groundcover Moderate 12”-36” x 12”-36” Alchemilla mollis Lady’s Mantle Perennial/Groundcover Low 2’ x 2’ Allium sp. Ornamental Onion Spring flowering bulb Low Deciduous Small or Alnus glutinosa Common Alder varieties Ornamental Tree Moderate 25’ x 25’ Deciduous Small or Alnus incana spp. tenuifolia ‡ Thinleaf Alder Ornamental Tree Moderate 25’ x 25’ Alyssum montanum Mountain Basket of Gold Perennial/Groundcover Low 6”-10” x 1’-2’ Amelanchier alnifolia ‘Regent’ Regent Serviceberry Large Shrub Low 6’ x 6’ Saskatoon or Mountain Ser- Amelanchier alnifolia ‡ viceberry Large Shrub Low 8’-12’ x 8’-12’ Deciduous Small or Amelanchier canadensis Canadian Serviceberry varieties Ornamental Tree Moderate 12’-15’ x 10’-15’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Allegheny Serviceberry vari- Deciduous Small or Amelanchier leavis eties Ornamental Tree Moderate 12’-15’ x 10’-15’ Deciduous Small or Amelanchier x grandiflora Apple Serviceberry varieties Ornamental Tree Moderate 12’-15’ x 10’-15’ Amorpha canescens Great Plains Leadplant Small Shrub Low 1’-3’ x 1’ x 3’ May sprawl becoming woody in later life Amorpha fruiticosa‡ False Indigo Large Shrub Low 6’-8’ x 8’-10’ Amorpha nana * Dwarf Leadplant Small Shrub Low 2’-3’ x 2’-3’ Andropogon gerardii ‡ Big Bluestem Grass Grass Low 2”-3” x 18”-24” Andropogon hallii Sand Bluestem Grass Low 2’-6’ Anemone pulsatilla, Pulsatilla vulgaris Pasque Flower Perennial/Groundcover Low 8” x 12” Anemone sylvestris Spring Windflower Perennial/Groundcover Moderate 10” x 24” Anemone vitifolia ‘Robustissima’ Fall Grape-leaf Anemone Perennial/Groundcover Moderate 36” x 45” Antenaria parvifolia ‡ Pussytoes Perennial/Groundcover Low 2”-6” Antennaria rosea Pink Pusseytoes Perennial/Groundcover Low 2”-6” May spread or sucker Arctostaphylos uva-ursi ‡* Kinnickinnick Perennial/Groundcover Low 6” x 6” Armeria maritima Sea Pink Perennial/Groundcover Moderate 12” x 12” Aronia arbutifolia “Brilliantissima” Brilliant Red Chokeberry Large Shrub Moderate 6’ x 5’ Aronia melanocarpa elata Black Chokeberry Small Shrub Low 4’-5’ x 4’ Artemesia cana Silver Sagebush Small Shrub Low 3’-6’ x 2’-3’ Artemesia frigida ‡* Fringed Sage Perennial/Groundcover Low 12”-24” x 12”-24” Artemesia ludoviciana ‡ Prairie Sage, Sagewort Perennial/Groundcover Low 1’-2.5’ Artemesia tridentata Tall Western Sagebush Small Shrub Low 3’-12’ x 3’-6’ Artemesia versicolor * Seafoam Sage Perennial/Groundcover Low 12”-18” x 2’ x 3’ Arundo donax Bamboo Grass Grass Low 12’ x 6’ May spread or sucker Aster frikarti Summer Aster Perennial/Groundcover Moderate 24”-30” x 24” Aster novae-angliae varieties New England Aster Perennial/Groundcover Low 2’ x 2’ May spread or sucker Aster novi-belgii varieties Dwarf Fall Asters Perennial/Groundcover Low 12”-15” x 2’-3’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Atriplex canescens ‡* Four Wing Saltbush Small Shrub Low 3’-5’ x 3’-4’ Aubrieta or Arabis varieties Rockcress Perennial/Groundcover Low 6” x 2’ May spread or sucker Baptisia australia False Indigo Perennial/Groundcover Low 24” x 36” Berberis spp. Barberry varieties Small Shrub Low 2’ x 2’ up to 5’ x 5’ Deciduous Small or Weak branching phreatophyte, Riparian Betula fontinalis ‡ Water Birch Ornamental Tree High 15’-20’ x 10’-15’’ areas only Weak branching phreatophyte, Riparian Betula nigra River Birch Deciduous Shade Tree High 40’-70’ x 40’-60’ areas only Deciduous Small or Weak branching phreatophyte, Riparian Betula occidentalis ‡ Western River Birch Ornamental Tree High 15’-20’ x 10’-15’’ areas Boltonia asteroids ‘Snowbank’ Snowbank Boltonia Perennial/Groundcover Moderate 48”-60” x 48” Bouetloua curtipendula ‡ Sideoats Grama Grass Low 12”-24” x 8”-12” 4” tall 15” with Bouteloua gracilis ‡ Blue Gramma Grass Grass Low seed heads (Alt. hondrosum gracile) Brunnera macophylla False Forget-me-not Perennial/Groundcover Low 12”-18” x 18” May spread or sucker Buchloe dactyloides ‡* Buffalo Grass Grass Low 4”-6” Buddelia davidii Butterfly Bush varieties Large Shrub Low 6’-10’ x 4’-8’ Buddleia alternifolia ‘Argentea’ Alternate-Leaf Butterfly Bush Large Shrub Low 8’-10’ x 8’-10’ Buxus spp. Boxwood varieties Small Shurb High Varies Calamovilfa longifolia ‡ Prairie Sandreed Grass Low 1.5’-6’ Callirhoe involucrata * Poppy Mallow/Wine Cups Perennial/Groundcover Low 5” x 30” Calmagrostis acutiflora varieties Feather Reed Grass varieties Grass Low 4’ x 2’ 3” x 12” to 30” x Campanula spp. Bellflower varieties Perennial/Groundcover Moderate 30” Campsis radicans Trumpet Vine Vine Low Will likely climb or scramble Caragana arborescens Siberian Peashrub Large Shrub Low 12’-15’ x 8’-10’ Caragana arborescens ‘Lobergii’ Fern-leaf Siberian Peashrub Large Shrub Low 12’-15’ x 8’-10’ Caragana pygmaea Pygmy Peashrub Small Shrub Low 3’-4’ x 3’-5’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Caragana rosea Rose Peashrub Small Shrub Low 3’-4’ x 3’-5’ Carex spp. Sedge varieties Grass Moderate 12’ x 12’ Deciduous Small or Carpinus betulus Hornbeam Ornamental Tree High 35’ x 25’ Caryopteris incana var. Blue Beard Small Shrub Low 3’-4’ x 4’-5’ Caryopteris x clandonensis Blue Mist Shrub, Blue Beard Small Shrub Low 3’-4’ x 4’-5’ Catalpa speciosa Western Catalpa Deciduous Shade Tree Low 50’-60’ x 30’-40’ Fendler’s Buckbrush, Moun- Ceanothus fendleri tain Lilac Small Shrub Low 2’-3’ x 2’-3’ Thorny shrub Celtis occidentalis Common Hackberry Deciduous Shade Tree Low 40’-60’ x 40’-60’ Nipple Gall can be a problem Celtis reticulata ‡* Native Hackberry Deciduous Shade Tree Low 30’ x 30’ Not readily available commercially Centranthus ruber Red Valerian Perennial/Groundcover Low 3” x 3” Cerastium tomentosum Snow in Summer Perennial/Groundcover Low 6”-12” x 24” Ceratoides or Krascheninnikovia lanata ‡ * Winterfat Small Shrub Low 2’-4’ x 2’-4’ Ceratostigma plumbaginoides Plumbago Perennial/Groundcover Low 1’ x 1’ May spread or sucker Deciduous Small or Cercis canadensis Redbud Ornamental Tree Moderate 20’ x 20’ Little Flowered Mountain Cercocarpus brevifolius Mahogany Large Shrub Low 8’-12’ x 8’-12’ Cercocarpus ledifolius * Curlleaf Mountain Mahogany Large Shrub Low 15’ x 10’ Cercocarpus ledifolius intricatus * Littleleaf Mountain Mahogany Small Shrub Low 3’-5’ x 3’-5’ Cercocarpus montanus ‡ * Common Mountain Mahogany Large Shrub Low 8’-10’ x 6’-8’ Chaenomeles cultivars Flowering Quince Small Shrub Low Varies Chaenomeles japonica Dwarf Flowering Quince Small Shrub Moderate 4’ x 8’ Chaenomeles speciosa Tall Flowering Quince Large Shrub Moderate 12’ x 10’ Chamaebatiaria millefolium * Fernbush Small Shrub Low 5’ x 5’ Chasmanthium latifolium Northern Sea Oats Grass Low 2’-3’ x 1’-2’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Chrysothamnus nauseosus var. nauseousus ‡* Rabbitbrush, Dwarf Small Shrub Low 1’-4’ x 2’-4’ May spread or sucker Chrysothamnus spp. * Tall Rabbitbrush Large Shrub Low 4’-6’ x 4’-6’ May spread or sucker Clematis spp. Clematis varieties Vine Moderate Will likely climb or scramble Clematis tanguitica * Yellow Lantern Clematis Vine Low Will likely climb or scramble Clematis terniflora Sweet Autumn Clematis Vine Moderate Will likely climb or scramble Cleome serrulata ‡ Rocky Mountain Beeplant Perennial/Groundcover Low 1’-3’ x 1’-3’ Contoneaster apiculatus Cranberry Cotoneaster Small Shrub Moderate 2’ x 4’ Coreopsis lanceolata Coreopsis Perennial/Groundcover Low 1’-2’ x 1’-2’ Coreopsis verticillata varieties Moonbeam Coreopsis Perennial/Groundcover Moderate 24” x 24” Deciduous Small or Cornus spp. Dogwoods Ornamental Tree High Vary Varieties and cultivars to include dwarves Cornus stolonifera ‡ Red Osier Dogwood Large Shrub High 6’-8’ x 6’-8’ (Alt. Swida serica) Corylus colurna Turkish Filbert Deciduous Shade Tree Low 30’-45’ x 25’-30’ Cotinus coggygria ‘Royal Purple’ Royal Purple Smoke Tree Small Shrub Moderate 8’-10’ x 8’-10’ Cotoneaster apiculatus ‘Tom Thumb’ Tom Thumb Cotoneaster Small Shrub Low 1’-2’ x 3’-6’ Cotoneaster dammeri Coral Beauty Cotoneaster Small Shurb High 1’-2’ x 4’-6’ Cotoneaster divaricatus Spreading Cotoneaster Small Shrub Low 4’ x 4’-6’ May spread or sucker Cotoneaster horizontalis Rock Cotoneaster Small Shurb High 2’-3’ x 3’-6’ Cotoneaster lucidus Peking Cotoneaster Large Shrub Low 8’-10’ x 8’-10’ Cowania mexicana * Cliffrose Small Shrub Low 4’ x 6’ Deciduous Small or Crataegus ambigua Russian Hawthorn Ornamental Tree Low 15’-25’ x 20’-25’ Deciduous Small or Crataegus arnoldiana Arnold Hawthorn Ornamental Tree Low 15’-20’ x 15’-20’ Deciduous Small or Crataegus crus-galli ‘Inermis’ Thornless Cockspur Hawthorn Ornamental Tree Moderate 10’-15’ x 10’-15’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Deciduous Small or Crataegus douglasii ‡ River Hawthorn Ornamental Tree Moderate 10’-18’ x 10’-18’ Deciduous Small or Crataegus erythropoda ‡* Native Hawthorn Ornamental Tree Low 20’ x 20’ Not readily available commercially Deciduous Small or Crataegus phaenopyrum Washington Hawthorn Ornamental Tree Moderate 10’-15’ x 10’-15’ Deciduous Small or Crataegus succulent Fleshy Hawthorn Ornamental Tree Low 15’-20’ x 15’-20’ Deciduous Small or Crataegus viridis ‘Winter King’ Winter King Hawthorn Ornamental Tree Low 20’ x 25’ Crocus spp Crocus varieties Spring flowering bulb Low Crocus) Bulb Moderate Cytisus purgans ‘Spanish Gold’ Spanish Gold Scotch Broom Small Shrub Low 4’ x 6’ Cytisus scoparius ‘Lilac Time’ Lilac Time Broom Small Shrub Low 2’-3’ x 3’-4’ Cytisus scoparius’Moonlight’ Moonlight Broom Small Shrub Low 4’-6’ x 4’-6’ Cytisus x varieties Scotch Broom Large Shrub Low 6’ x 6’ Daffodils, Snowdrops, Colchicum (Fall Bulb Moderate Dalea purpurea ‡ Prairie Clover Perennial/Groundcover Low 0.5’-1.5’ Daphne burkwoodii “Carol Mack- ie” Carol Mackie Daphne Small Shrub Moderate 4’ x 4’ Delosperma cooperia Purple Iceplant varieties Perennial/Groundcover Low 2’-3’ x 2’ Delosperma nubigenum Yellow Iceplant varieties Perennial/Groundcover Low 2’-3’ x 2’ Delphinium nelsonii ‡ Nelson’s Delphinium Perennial/Groundcover Low 1’-2’ Delphinium sppl Delphinium varieties Perennial/Groundcover Moderate Varies Deschampsia cespitosa ‡ Tufted Hairgrass Grass Moderate 2.5’-4’ Digitalis lanata Grecian Foxglove Perennial/Groundcover Low 18”-24” x 18”-24” Distegia involucrate ‡ Twinberry Honeysuckle Large Shrub Low 7’ x 7’ (Alt. Lonicera involucrate) Duchesnea indica False Strawberry Perennial/Groundcover Low 3’-6’ x 24” May spread or sucker Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Echinacea purpurea Purple Cornflower Perennial/Groundcover Moderate 2’-3’ x 2’-3’ Coneflower varieties and Echinacea spp. and hybrids cultivars Perennial/Groundcover Moderate 2’-3’ x 2’-3’ Echinops ritro Globe Thistle Perennial/Groundcover Low 3’ x 3’ Elaeagnus commutata Silverberry Large Shrub Low 6’-12’ x 6’-12’ Elaeagnus umbellate Autumn Olive Large Shrub Low 10’-15’ x 10’-15’ Elymus glaucus ‡ Blue Wild Rye Grass Moderate 2.5’-4.5’ Ephedra equistina Bluestem Joint Fir Small Shrub Low 3’-5’ x 2’-3’ Ephedra viridis * Mormon Tea Small Shrub Low 2’-3’ x 2’-3’ Erianthus ravannae Plume Grass Grass Low 12’ x 4’ Erigeron spp. ‡ Aspen Daisy Perennial/Groundcover Low 1’-2’ Eriogonum umbellatum ‡* Sulpher Flower Perennial/Groundcover Low 15” x 24” Erysimum asperum ‡ Western Wallflower Perennial/Groundcover Low 0.5’-2’ Euonymous alatus Burning Bush Evergreen Tree/Shrub High 12’ x 12’ Euonymous alatus ‘Compactus’ Dwarf Burning Bush Small Shrub Moderate 6’-8’ x 6’-8’ Euonymous fortunei varieties Euonymous Coloratus Small Shrub Moderate 2’-4’ x 4’-8’ Euonymous kiautschovica ‘Man- hattan’ Manhattan Euonymous Small Shrub Moderate 4’-6’ x 6’-8’ Euonymous nana turkestanicus Turkestan Burning Bush Small Shrub Moderate 2’-3; x 3’-6’ Fallugia paradoxa * Apache Plume Small Shrub Low 3’-5 x 3’-5’ Festuca arizonica ‡ Arizona Fescue Grass Low 1’-3’ Festuca ovina glauca Blue Fescue Grass Grass Low 1’ x 1’ Festuca varieties Turf-type tall Fescues Grass Low Varies Forestiera neomexicana New Mexico Privet Large Shrub Low 8’-15’ x 8’-12’ Forsythia x intermedia Border Forsythia varieties Large Shrub Moderate 8’-10’ x 10’-12’ Forsythia x intermedia ‘Arnold’s Dwarf ’ Arnold’s Dwarf Forsythia Large Shrub Moderate 2’-3’ x 3’-6’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Forsythia x intermedia ‘Northern Sun’ Northern Sun Forsythia Large Shrub Moderate 6’-8’ x 8’-10’ Fraxinus americana ‘Autumn Pur- ple’ Autumn Purple Ash Deciduous Shade Tree Moderate 40’-50’ x 40’-50’ Suffers winterkill, Ash borer beetle Fraxinus mandschurica ‘Mancana’ Mancana Ash Deciduous Shade Tree Moderate 40’-50’ x 20’-30’ Suffers winterkill, Ash borer beetle Fraxinus nigra ‘Fallgold’ Fallgold Ash Deciduous Shade Tree Moderate 40’-50’ x 15’-20’ Suffers winterkill, Ash borer beetle Fraxinus pennsylvanica varieties Green Ash varieties Deciduous Shade Tree Moderate 50’-60’ x 35’-40’ Suffers winterkill, Ash borer beetle Gaillardia varieties ‡ Blanket Flower Perennial/Groundcover Low 2’-3’ x 2’-3’ Galium ordoratum Sweet Woodruff Perennial/Groundcover Moderate 4” x 24” May spread or sucker Genista varieties Woadwaxen Small Shrub Low 1’-3’ x 2’-4’ Geranium sanguineum Bloody Cranesbill Perennial/Groundcover Low 1’ x 2’ Geranium spp. Hardy Cransbill varieties Perennial/Groundcover Moderate 8”-36” x 12”-36” Geum triflorum Prairie Smoke Avens Perennial/Groundcover Low 1’ x 1’ Ginkgo biloba Ginkgo Deciduous Shade Tree Moderate 35’-40’ x 15’-20’ Thornless Honeylocust vari- Shademaster, Skyline, Sunburst and Gleditsia triancanthos inermis var. eties Deciduous Shade Tree Low 40’-50’ x 35’-45’ others. Gutierrezia sarothrae ‡ Broom Snakeweed Perennial/Groundcover Low 0.5’-1.5’ Gymnocladus dioicus * Kentucky Coffeetree Deciduous Shade Tree Low 50’-60’ x 40’-50’ Hardy Ferns Many varieties Perennial/Groundcover High Varies Hedera helix English Ivy Vine Moderate Will likely climb or scramble Helenium autumnale Helen’s Flower Perennial/Groundcover High 3’-4’ x 2’ Helianthemum nummularium Sunrose Perennial/Groundcover Low 6” x 18”-24” Helianthus maximiliana * Maximilian Sunflower Perennial/Groundcover Low 6”-8” x 4” Helianthus pumilus ‡ Bush Sunflower Perennial/Groundcover Low 8”-2.5’ Helictotrichon sempervirens Blue Avena Grass Grass Low 2’ x 2’ – 3’ Hemerocallis spp. Daylily varieties Perennial/Groundcover Moderate 18”-36” x 18”-36” Hesperaloe parviflora Red False Yucca Small Shrub Low 3’-4’ x 3’-4’ Hesperostipa comata ‡ Needle and Thread Grass Low 1’-2’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Hesperostipa neomexicana ‡ New Mexico Feathergrass Grass Low 1’-2.5’ Heuchera sanguinea varieties Coral Bells Perennial/Groundcover High 8”-12” x 18”-36” Hibiscus moschutos Perennial Hibiscus Perennial/Groundcover High Varies, 3’ x 3’ Hibiscus syriacus Rose of Sharon Large Shrub Low 8’-10’ x 8’-10’ Hippophae rhamnoides Sea Buckthorn Large Shrub Low 8’-18’ x 8’-12’ Holodiscus dumosus * Rock Spirea Small Shrub Low 3’ x 6’ Hosta spp. Hosta varieties Perennial/Groundcover High 12”-24” x 24”-48” Humulus lupunus Hop Vine Vine Moderate Will likely climb or scramble Rose of Sharon, Althea vari- Hybiscus syriacus eties Large Shrub Moderate 8’-10’ x 6’-8’ Hydrangea arborescens ‘Annabelle’ Hydrangea, Annabelle Small Shurb High 3’ x 3’ Hydrangea paniculata ‘Grandiflora’ Pee Gee Hydrangea Large Shrub High 10’-12’ x 8’-10’ Hydrangea spp. cultivars Hydrangia varieties Small Shrub Moderate Varies Hypericum ‘Hidcote’ Hidcote St. Johnswort Small Shrub Low 2’ x 2’ Hypericum frondosum ‘Sunburst’ Sunburst St. Johnswort Small Shrub Low 3’-4’ x 3’-4’ Hypericum patalum “Hidcote’ Hidcote St. John’s Wart Small Shrub Moderate 3’ x 4’ Iberis sempervirens Candytuff Perennial/Groundcover Moderate 8” x 24” Ilex spp. Holly varieties Small Shrub Moderate Varies Imerata cylindrical ‘Red Baron’ Japanese Blood Grass Grass Moderate 1’-2’ x 1’-2’ Iris reticulata Botanical Iris Spring flowering bulb Low Iris siberica Siberian Iris Perennial/Groundcover Moderate 24” x 24” Iris spp. Dwarf and Bearded Iris Spring flowering bulb Low Jamesia americana ‡* Waxflower Small Shrub Low 4’ x 4’ Juniperus chinensis Chinese Junipers Evergreen Tree/Shrub Low Size varies by type Largely low-growing mats or groundcov- Juniperus horizontalis Fastigiate Junipers Evergreen Tree/Shrub Low Size varies by type ers Juniperus monosperma ‡* Native Upright Juniper Evergreen Tree/Shrub Low 25’-30’ x 16’-20’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Juniperus sabina ‡ Savin Juniper varieites Evergreen Tree/Shrub Low Size varies by type Rocky Mountain Juniper Juniperus scopulorum ‡* varieties Evergreen Tree/Shrub Low Size varies by type Junperous communis ‡ Common Juniper Evergreen Tree/Shrub Low Size varies by type Knautia macedonia Maroon Pincushion Flower Perennial/Groundcover Low 3” x 3” Kniphofia spp. Red Hot Poker varieties Perennial/Groundcover Low Varies, 3’-4’ x 3’-4’ Koeleria macrantha ‡ Junegrass Grass Low 1’-2’ Deciduous Small or Koelreuteria paniculata Goldenrain Tree Ornamental Tree Low 20’-30’ x 20’-25’ Kolkwitzia amabilis Beauty Bush Large Shrub Low 8’-10’ x 8’-10’ Lamium maculatum ‘White Nancy’ White Nancy Nettle Perennial/Groundcover Low 4’-6’ x 2’ May spread or sucker Lavendula angustifolia Lavender varieties Perennial/Groundcover Low 12”-24” x 12”-24” Leucanthemum spp. Shasta Daisy Perennial/Groundcover Moderate 24”-36” x 24”-36” Liatris punctata ‡* Native Gayfeather Perennial/Groundcover Low 18” x 18” Liatris spicata Gayfeather Perennial/Groundcover Low 1’-2’ x 1’ Varies 36”-48” x Ligularia spp. Ligularia varieties Perennial/Groundcover High 36” Ligustrum obtusifolium regalianum Regel Privet Small Shrub Low 5’ x 5’ Ligustrum vulgare ‘Cheyenne’ Common Cheyenne Privet Large Shrub Low 12’-15’ x 12’-15’ Ligustrum vulgare ‘Densiflorum’ Upright Privet Large Shrub Low 6’-8’ x 3’-4’ Ligustrum vulgare ‘Lodense’ Lodense Privet Small Shrub Low 2’-3’ x 3’-4’ Ligustrum vulgare “Lodense” Lodense Privet Small Shrub Moderate 4’ x 4’ Ligustrum x vicaryi Golden Vicary Privet Small Shrub Moderate 4’-6’ x 3’-4’ Lilium spp. Lily varieties Perennial/Groundcover Moderate 24”-36” x 12” Linum perenne, L. lewisii ‡* Blue Flax Perennial/Groundcover Low 18” x 18” (Alt. Andolinum lewisii) Liquidambar styraciflua American Sweetgum Deciduous Shade Tree Moderate 60’-80’ x 40’-60’ Liriodendron tulipifera Tulip Tree/ Yellow Poplar Deciduous Shade Tree High 40’-100 x 20’-40’ Lonicera korolkowii Honeyrose Honeysuckle Large Shrub Low 10’-12’ x 13’-15’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Lonicera korolkowii var. floribunda ‘Blue Velvet’ Blue Velvet Honeysuckle Large Shrub Low 10’-12’ x 10’-12’ Lonicera spp. Honeysuckle varieties Large Shrub or Vine Varies 8’-10’ x 8’-10’ Lilac-flowering Dwarf Honey- Lonicera syringantha var. wolfii suckle Large Shrub Low 10’-12 x 4’-6’ Lonicera tatarica ‘Arnold’s Red’ Arnold’s Red Honeysuckle Large Shrub Low 6’-12’ x 6’-12’ Lonicera xylosteoides ‘Clavey’s Dwarf ’ Clavey’s Dwarf Honeysuckle Small Shrub Low 5’-6’ x 4’-5’ Lonicera xylosteoides ‘Miniglobe’ Miniglobe Honeysuckle Small Shrub Low 2’-3’ x 3’-4’ Lupinus spp. ‡ Lupine varieties Perennial/Groundcover Low 18”-36” x 18”-36” Lychnis coronaria Rose Campion Perennial/Groundcover Low 18”-30” x 18”-30” May spread or sucker Machaeranthera pinnatifida ‡ Spiny Goldenweed Perennial/Groundcover Low .5’-2’ Evergreen Oregon Grape Mahonia aquifolium Holly Large Shrub Low 6’-10’ x 6’-10’ Slow growing Compact Evergreen Oregon Mahonia aquifolium ‘Compacta’ Grape Holly Small Shrub Low 3’ x 3’ Mahonia fremontii * Freemont Mahonia Evergreen Tree/Shrub Low 5’-8’ x 5’-8’ Mahonia repens ‡* Creeping Mahonia Small Shrub Low 12’-24’ May spread or sucker Deciduous Small or Malus spp. Apples an Crabapples Ornamental Tree Moderate 18’-25’ x 18’-25’ CSU fireblight resistant varieties only. Malva alcea Hollyhock Mallow Perennial/Groundcover Low 3’ x 3’ Will spread by seed or reseed Mirabilis multiflora * Wild Four-O’-Clock Perennial/Groundcover Low 24”-48” x 24”-48” Miscanthus spp. Maiden Grass varieties Grass Low Varies Monarda varieties ‡ Bee Balm varieties Perennial/Groundcover Low 2’-3’ x 2’-3’ Muhlenbergia Montana Mountain Muhly Grass Low 0.5’-2’ Muscari spp. Grape Hyacinth varieties Spring flowering bulb Low Nepeta x faassenii Catmint Varies Perennial/Groundcover Low 1’-3’ x 1’-3’ Nyssa sylvatica Black Gum Deciduous Shade Tree Moderate 40’-60’ x 20’-30’ Oenothera caespitosa ‡ White Evening Primrose Perennial/Groundcover Low 0.5’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Yellow Stemless Evening Oenothera howardii ‡ Primrose Perennial/Groundcover Low 0.5’ (Alt. Oenothera brachycarpa) Oenothera macrocarpa * Missouri Evening Primrose Perennial/Groundcover Low 12”-15” x 24” Oenothera speciosa Showy Pink Evening Primrose Perennial/Groundcover Low 10” x 18” Oryzopsis hymenoides ‡ Indian Rice Grass Grass Low 12”-18” x 12”-18” (Alt. Achnatherum hymenoides) Paeonia spp. Peony varieties Perennial/Groundcover Moderate Varies, 36” x 36” Panicum virgatum ‡* Switchgrass Grass Low 3’-4’ x 2’-3’ Papaver orientalis Oriental Poppy Perennial/Groundcover Low 2’-3’ x 2’-3’ Parthenocissus quinquefolia Virginia Creeper Vine Low Will likely climb or scramble Parthenocissus tricuspidata Boston Ivy Vine Moderate Will likely climb or scramble Pennisetum spp. Fountain Grass varieties Grass Low Varies Penstemon spp.* Penstemon varieties Perennial/Groundcover Low Varies 1’-3’ x 1’-3’ Penstemon virgatus ‡ Tall Beard-tongue Perennial/Groundcover Low 1’-2’ Penstemon whippleanus ‡ Whipples Penstemon Perennial/Groundcover Low 0.5’-1.5’ Perovskia atriplicifolia Russian Sage Small Shrub Low 3’-5’ x 3’-5’ Persicaria affinis Himalayan Border Jewell Perennial/Groundcover Low 1’ x 2’ Phalaris arundinacea ‘Picta’ Ribbon Grass Grass Moderate 2’ x 4’-6’ May spread or sucker Philadelphus coronarius Sweet Mockorange Large Shrub Low 10’-12’ x 10’-12’ Philadelphus lewisii Lewis Mockorange Large Shrub Low 6’-8’ x 6’-8’ Philadelphus microphyllus Littleleaf Mockorange Small Shrub Low 6’ x 6’ Philadelphus x ‘Buckley’s Quill’ Buckley’s Quill Mockorange Small Shrub Low 3’-4’ x 3’-4’ Philadelphus x ‘Snowbelle’ Snowbelle Mockorange Small Shrub Low 3’-4’ x 3’-4’ Philadelphus x virginalis ‘Dwarf Dwarf Minnesota Snowflake Minnesota’ Mockorange Small Shrub Moderate 3’-4’ x 3’-4’ Phlomis russeliana Hardy Jerusalem Sage Perennial/Groundcover Low 36’ x 20’ Phlox divaricarta Sweet William Perennial/Groundcover Moderate 8”-12” x 12”-15” Phlox paniculata Tall Summer Garden Phlox Perennial/Groundcover Moderate 32”-48” x 30”-40” Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Phlox subulata Phlox creeping Perennial/Groundcover Moderate 3”-4” x 12”-24” Physocarpus monogynus ‡* Ninebark, Native Small Shrub Low 4’ x 4’ Physocarpus opulifolius ‘Dart’s Gold’ Dart’s Gold Ninebark Small Shrub Low 3’-5’ x 3’-5’ Physocarpus opulifolius ‘Diablo’ Diablo Ninebark Large Shrub Low 6’-8’ x 6’-8’ Physocarpus opulifolius nana Dwarf Ninebark Small Shrub Low 4’-6’ x 4’-6’ Physostegia virginiana Obedient Plant Perennial/Groundcover Moderate 2’ x 2’ Picea abies Norway Spruce varieties Evergreen Tree/Shurb Moderate Varies Varieties and cultivars to include dwarves Black Hills Spruce, Alberta Picea glauca Spruce varieties Evergreen Tree/Shurb Moderate Varies Varieties and cultivars to include dwarves Picea omorika Serbian Spruce Evergreen Tree/Shurb Moderate Varies Varieties and cultivars to include dwarves Picea pungens Colorado Spruce varieties Evergreen Tree/Shurb Moderate Varies Varieties and cultivars to include dwarves Pinus aristata * Bristlecone Pine Evergreen Tree/Shrub Low 20’-30’ x 10’-20’ Pinus cembra ‘Nana’ Dwarf Swiss Stone Pine Evergreen Tree/Shrub Low varies Pinus cembroides edulis * Piñon Pine Evergreen Tree/Shrub Low 15’-20’ x 15’-20’ Pinus contorta latifolia * Lodgepole Pine Evergreen Tree/Shrub Low 50’-70’ x 10’-15’ Pinus flexilis Limber Pine Evergreen Tree/Shrub Low 30’-50’ x 20’-30’ Vanderwolf ’s and other varieties Pinus heldreichii Bosnian Red Pine Evergreen Tree/Shurb Moderate 15’-25’ x 10’-12’ Pinus mugo Mugo Pine Evergreen Tree/Shrub Low Varies Size varies greatly depending on cultivar Pinus nigra Austrian Pine Evergreen Tree Low 40’-60’ x 30’-40’ Does not do well in Denver - Austrian Pinus ponderosa ‡ Ponderosa Pine Evergreen Tree/Shurb Moderate 50’-60’ x 20’-30’ Pine does much better. Pinus strobiformus Southwestern White Pine Evergreen Tree/Shurb Moderate 40’-50’ x 20’-30’ Pinus strobus Eastern White Pine Evergreen Tree/Shurb Moderate 30’-50’ x 20’-30’ Varieties and cultivars to include dwarves Pinus sylvestris Scotch Pine Evergreen Tree/Shurb Moderate 30’-50’ x 20’-30’ Platanus x acerifolia London Planetree Deciduous Shade Tree Moderate 40’-60’ x 30’-40’ Platycoden grandiflora Balloon Flower Perennial/Groundcover Moderate 24” x 24” Poa pratensis Kentucky Bluegrass Turf Grass High Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Polygonum aubertii Silverlace Vine Vine Low Will likely climb or scramble Weak branching phreatophyte, Riparian Populus angustifolia ‡ Narrowleaf Cottonwood Deciduous Shade Tree High 30’-50’ x 20’-30’ areas only Weak branching phreatophyte, Riparian Populus deltoides ‡ Eastern Cottonwood Deciduous Shade Tree High 60’-80’ x 50’-60’ areas only Weak branching phreatophyte, Riparian Populus fremontii ‡ Freemont Cottonwood Deciduous Shade Tree High 60’-80’ x 50’-60’ areas only Weak branching phreatophyte, Riparian Populus nigra var. italica Lombardy Poplar Deciduous Shade Tree High 40’-60’ x 10’-12’ areas only Weak branching phreatophyte, Riparian Populus sargentii ‡ Plains Cottonwood Deciduous Shade Tree High 60’-80’ x 50’-60’ areas only Numerous weather, disease, insect and Populus tremuloides Quaking Aspen Deciduous Shade Tree Moderate 20’-100 x 10’-30’ root problems Weak branching phreatophyte, Riparian Populus trichocarpa Black Cottonwood Deciduous Shade Tree High 90’-150’ x 50’-60’ areas only Weak branching phreatophyte, Riparian Populus x acuminata ‡ Lanceleaf Cottonwood Deciduous Shade Tree High 60’ x 25’ areas only Potentilla fruticosa ‡ * Potentilla, Cinquefoil Small Shrub Low 3’ x 3’ (Alt. Pentaphylloides floribunda) Potentilla spp. Potentilla, Cinquefoil varieties Small Shrub Low 2’ x 2’ up to 4’ x 4’ Himalayan Primrose or Drum- Primula denticulata stick Primrose Perennial/Groundcover Moderate 6”-12” x 8”-12” Deciduous Small or Prunus Americana American Plum Ornamental Tree Low 10’-20’ x 8’-10’ Prunus americana ‡* American Wild Plum Large Shrub Low 10’ x 15’ May spread or sucker Prunus besseyi * Western Sandcherry Small Shrub Low 4’ x 4’ Prunus besseyi ‘Pawnee Buttes’ ‡ Pawnee Buttes Sandcherry Small Shrub Low 2’-3’ x 6’-10’ (Alt. Cerasus pumilla spp. besseyi) Deciduous Small or Prunus ceracifera ‘Newport’ Newport Plum Ornamental Tree Moderate 20’ x 25’ Deciduous Small or Prunus cerasus Sour Cherry Ornamental Tree Moderate 20’ x 25’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Prunus cistina Purple-leaf Plum Large Shrub Moderate 8’-12’ x 8’-12’ Prunus fruticosa Dwarf European Cherry Small Shrub Moderate 6’-8’ x 6’-8’ Prunus glandulosa ‘Rosea Plena’ Pink Flowering Almond Small Shrub Moderate 4’-6’ x 4’-6’ Deciduous Small or Prunus nigra ‘Princess Kay’ Princess Kay Plum Ornamental Tree Moderate 15’ x 10’ Prunus tenella Dwarf Russian Almond Small Shrub Low 2’-5’ x 2’-4’ Prunus tomentosa Nanking Cherry Large Shrub Low 10’ x 15’ Prunus triloba Rose Tree of China Large Shrub Moderate 8’ x 8’ Deciduous Small or Prunus virginiana ‡ Chokecherry Ornamental Tree Moderate 10’-25’ x 10’-25’ Prunus x cistena Cistena Plum Small Shrub Moderate 6’-8’ x 6’-8’ Pseudotsuga menziesii Douglas Fir Evergreen Tree/Shurb Moderate 50’ x 20’ Varieties and cultivars to include dwarves Deciduous Small or Ptelea trifoliata Wafer Ash Ornamental Tree Low 10’-15’ x 10’-15’ Purshia tridentata ‡ Antelope Bitterbush Small Shrub Low 5’ x 5’ Pyracantha spp. Pyracantha varieties Small Shrub Low Varies Deciduous Small or Pyrus calleryana ‘Autumn Blaze’ Autumn Blaze Pear Ornamental Tree Moderate 25’-35’ x 20’-30’ Deciduous Small or Pyrus calleryana ‘Chanticleer’ Chanticleer Callery Pear Ornamental Tree Moderate 30’-40’ x 15’-30’ Deciduous Small or Pyrus calleryana ‘Stone Hill’ Stone Hill Pear Ornamental Tree Moderate 30’-40’ x 15’-20’ Deciduous Small or Pyrus fauriei ‘Korean Sun’ Korean Sun Pear Ornamental Tree Moderate 10’-12’ x 12’-15’ Deciduous Small or Pyrus ussuriensis Ussurian Pear Ornamental Tree Moderate 30’-40’ x 15’-30’ Deciduous Small or Pyrus ussuriensis ‘Prairie Gem’ Prairie Gem Pear Ornamental Tree Moderate 20’ x 20’ Quercus alba var. White Oak varieties Deciduous Shade Tree Moderate 60’-100’ x 50’-90’ Quercus bicolor ‡ Swamp White Oak Deciduous Shade Tree Moderate 50’-60’ x 50’-60’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Quercus coccinea Scarlet Oak Deciduous Shade Tree Moderate 50’-80’ x 40’-50’ Quercus ellipsoidalis Northern Pin Oak Deciduous Shade Tree Moderate 30’-50’ x 50’-60’ Quercus gambelii ‡* Gamble Oak Deciduous Shade Tree Low 8’-20’ x 6’-8’ May spread or sucker Quercus macrocarpa ‡ Bur Oak Deciduous Shade Tree Low 50’-60’ x 45’-60’ Quercus muehlenbergii ‡ Chinkapin Oak Deciduous Shade Tree Low 35’-50’ x 35’-50’ Quercus palustris Pin Oak Deciduous Shade Tree Moderate 60’-80’ x 40’-50’ Quercus robur var. ‡ English Oak varieties Deciduous Shade Tree Moderate 40’-60’ x 40’-60’ Varieties differ in size Quercus shumardii ‡ Shumard Oak Deciduous Shade Tree Moderate 70’-80’ x 50’-60’ Qurecus rubra var. ‡ Northern Red Oak varieties Deciduous Shade Tree Moderate 60’-80’ x 40’-50’ Ratibida columnifera ‡* Three-leaf Yellow Coneflower Perennial/Groundcover Low 15’-24’ x 18’ Rhamnus frangula ‘Columnaris’ Tall Hedge Buckthorn Large Shrub Low 12’-15’ x 4’-6’ Rhamnus smithii Smith’s Buckthorn Large Shrub Low 8’ x 8’ Rhododendron spp. Rhododendron varieties Small Shrub Moderate Varies Rhus aromatica ‘Gro-low’ Gro-low Sumac Small Shrub Low 2’-3’ x 6’-8’ Rhus aromatica ‡ Fragrant Sumac Large Shrub Low 4’-6’ x 4’-6’ Rhus glabra cis-montana ‡ * Rocky Mountain Sumac Small Shrub Low 3’ x 8’ May spread or sucker Rhus glabra‡ * Smooth Sumac Large Shrub Low 12’-15’ x 12’-15’ May spread or sucker Rhus trilobata * Three-leaf Sumac Large Shrub Low 6’-8’ x 8’ May spread or sucker Rhus typhina * Staghorn Sumac Large Shrub Low 15’ x10’ Rhus typhina ‘Laciniata’ Cutleaf Sumac Large Shrub Low 6’-8’ x 6’-8’ Ribes alpinum Alpine Currant Small Shrub Low 5’ x 5’ Ribes aureum * Yellow Flowering Currant Large Shrub Low 5’ x 6’ Ribes cereum ‡ * Squaw or Wax Currant Small Shrub Low 2’-4’ x 2’-4’ Ribes sylvestre ‘Red Lake’ Red Lake Currant Small Shrub Low 3’-4’ x 3’-4’ Robinia neomexicana ‡ New Mexico Locust Deciduous Shade Tree Low 70’-80’ x 50’-80’ Robinia pseudoacacia ‘Frisia’ Frisia Black Locust Deciduous Shade Tree Moderate 30’-50’ x 30’-40’ Robinia pseudoacacia ‘Purple Robe’ Purple Robe Locust Deciduous Shade Tree Moderate 35’-40’ x 25’-30’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Rosa glauca Red-leaf Shrub Rose Large Shrub Low 8’ x 8’ Rosa rugosa Rugosa Shrub Rose Small Shrub Low 2’ x 2’ up to 5’ x 5’ Rosa spp. Common Rose Varieties Large Shrub Low Varies Rosa woodsii ‡ * Native Rose Small Shrub Low 4’-5’ x 4’-5’ May spread or sucker Rubacer parviflorus ‡ Thimbleberry Small Shrub Moderate 5’ x 5’ Rubus deliciosus ‡* Boulder Rasberry Small Shrub Low 6’-8’ x 6’-8’ (Alt. Oreobatus deliciosus) Rudbeckia fulgida ‘Goldstrum’ Goldstrum Black-eyed Susan Perennial/Groundcover Moderate 24”-28” x 24” Rudbeckia hirta spp. ‡ Black Eyed Susan varieties Perennial/Groundcover Low 15’-24’ x 18 Saccharum ravannae Plume Grass Grass Low 8”-12” x 3”-4” Deciduous Small or Salix amygdaloides ‡ Peachleaf Willow Ornamental Tree High 30’-40’ x 10’-20’ Riparian areas only Deciduous Small or Salix exigua ‡ Coyote Willow Ornamental Tree High 5’-7’ x 5’-7’ Riparian areas only Salix pupurea nana Dwarf Arctic Willow Small Shurb High 6’-8’ x 6’-8’ Willow varieties (including Weak branching phreatophyte, Riparian Salix spp. ‡ natives) Deciduous Shade Tree High 40’-60’ areas only Salvia nemerosa Perennial Salvia Perennial/Groundcover Low Varies, 24” x 24” Sage varieties, ornamental & Salvia spp. cooking Perennial/Groundcover Low 1’-2’ x 1’-2’ Sambucus microbotrys‡ Red-berried Elder Large Shrub High 6’-8’ x 8’-10’ Large Shrub to small Sambucus spp. Elder, Elderberry Tree High Varies Varies small tree to large shrub Saponaria ocymoides Rock Soapwort Perennial/Groundcover Low 6” x 2’” May spread or sucker Scabiosa caucasica Pincushion Flower Perennial/Groundcover Moderate 24” x 24” Scabiosa luncinda Dwarf Pincushion Flower Perennial/Groundcover Low 6”-8” x 12” Schizachyrium scoparium ‡* Little Bluestem Grass Low 3” x 18” Scilla spp. Scilla varieties Spring flowering bulb Low Sedum spectabile Tall Sedum varieties Perennial/Groundcover Low 18”-24” x 18”-24” Sedum spurium Low Sedum varieties Perennial/Groundcover Low 3” x 24” May spread or sucker Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Sempervirens spp. * Hen & Chicks Perennial/Groundcover Low 2’-4’ x 2’-4’ May spread or sucker Shepherdia argentia ‡ Silver Buffaloberry Large Shrub Low 8’-15’ x 6’-12’ Russet Buffaloberry (many Shepherdia candensis common names) Large Shrub Low 6’-8’ x 6’-8’ Shepherdia rotundifolia Round-leafed Buffaloberry Small Shrub Low 2’-4’ x 2’-4’ Sidalcea malviflora Prairie Hollyhock Perennial/Groundcover Low 3’ x 3’ Varies, 12”-24” x Solidago spp. Goldenrod varieties Perennial/Groundcover Low 12”-24” Japanese Pagoda Tree, Scholar Sophora japonica Deciduous Shade Tree Low 40’-50’ x 30’-40’ Tree Sorbaria sorbifolia Ural False Spirea Large Shrub Low 4’-8’ x 6’-8’ May spread or sucker Sorbus aucuparia European Mountain Ash Deciduous Shade Tree Moderate 20’-35’ x 15’-20’ Deciduous Small or Sorbus scorpulina ‡ Mountain Ash Ornamental Tree Low 15’-20’ x 15’-18’ Not readily available commercially Sorghastrum nutans ‡ Indian Grass Grass Moderate 3’-4’ x 2’ (Alt. Sorghastrum avenaceum) Spartina pectinata ‡ Prairie Cordgrass Grass Moderate 3’-7’ Sphaeralcea coccinea ‡ Scarlet Globe Mallow Perennial/Groundcover Low 0.5’-1’ Sphaeralcea muhroans * Orange Globe Mallow Perennial/Groundcover Low 36”-48” x 24” Spirea spp. Spirea varieties Small Shrub Moderate Varies, 2’-6’ x 2’-6’ Spirea x vanhouttei Spirea, Vanhoutte Large Shrub Moderate 6’ x 8’ Sporobolus airoides ‡ Alkali Sacaton Grass Moderate 1.5’-3’ Sporobolus cryptandrus ‡ Sand Dropseed Grass Low 1’-3’ Sporobolus herolepis Prairie Dropseed Grass Low 1’-2.5’ Stachyz byzantina Lamb’s Ear Perennial/Groundcover Low 10”-12” x 24”’ May spread or sucker Stipa tenuissuma Mexican Feather Grass Grass Low 2’-3’ x 1’-2’ Symphoricarpos albus ‡ White Coralberry Small Shrub Low 4’-5’ x 4’-6’ Symphoricarpos orbiculatus Red Coralberry Small Shrub Low 4’-5’ x 4’-6’ Mountain Snowberry Coral- Symphoricarpos oreophilus * berry Small Shrub Low 4’ x 4’ May spread or sucker Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Symphoricarpos x chenaulti ‘Han- cock’ Hancock Coralberry Small Shrub Low 2’ x 12’ Symphoricarpos x doorenbosii ‘Amethyst’ Amethyst Snowberry Small Shrub Low 3’ x 3’ Syringa meyeri or S. patula Dwarf Korean Lilac Large Shrub Moderate 6’ x 8’ Deciduous Small or Syringa pekinensis Peking Lilac Ornamental Tree Moderate 15’-20’ x 10’-15’ Deciduous Small or Syringa reticulata Japanese Tree Lilac Ornamental Tree Moderate 20’-25’ x 15’ Syringa vulgaris Common Purple Lilac Large Shrub Low 10’-12’ x 10’-12’ Syringia spp. Lilac cultivars and varieties Small Shrub Low Varies Tanacetum densum amani Partridge Feather Perennial/Groundcover Low 8”’-10” x 2’ May spread or sucker Tanacetum niveum Snow Daisy Perennial/Groundcover Low 18”-24” x 18”-24” Taxus baccata English Yew Evergreen Tree/Shrub High Varies Varieties and cultivars to include dwarves Taxus cuspidate Japanese Yew Evergreen Tree/Shrub High Varies Varieties and cultivars to include dwarves Teucrium canadensis American Germander Perennial/Groundcover Low 1’ x 1’ Thermopsis divaricarpa * Golden Banner Perennial/Groundcover Low 18”-24” x 18”-24” May spread or sucker Thuja orientalis spp. Oriental Arborvitae varieties Small Shrub Moderate Varies Tilia americana American Linden varieties Deciduous Shade Tree Moderate 50’-70’ x 30’-50’ Tilia cordata Littleleaf Linden varieties Deciduous Shade Tree Moderate 50’-70’ x 30’-50’ Tilia tomentosa Silver Linden Deciduous Shade Tree Moderate 40’-70’ x 25’-45’ Tradescantia occidentalis ‡ Spiderwort Perennial/Groundcover Low 0.5’-2’ Tulipa spp. Tulip varieties Spring flowering bulb Low American Elm (disease resis- ‘American Liberty,’ ‘Independence’ and Ulmus americana tant varieties) Deciduous Shade Tree Moderate Varies ‘Princeton’ Ulmus x ‘Patriot’ Patriot Elm hybrid Deciduous Shade Tree Moderate 60’ x 40’ Ulmus x ‘Regal’ Regal Elm hybrid Deciduous Shade Tree Moderate 50’ x 25’ Verbena bipinnatifida ‡ Wild Verbena Perennial/Groundcover Low 0.5’-1’ (Alt. Glandularia bipinnatifida) Verbena hastata Blue Vervain Perennial/Groundcover Low 2’-3’ Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Veronica pectinata Woolly Veronica Perennial/Groundcover Low 3’”x 24” May spread or sucker Veronica prostrata Turkish Veronica Perennial/Groundcover Low 3” x 24” May spread or sucker Veronica spicata Tall Veronica varieties Perennial/Groundcover Moderate 24”-36” x 24”-36” Viburnum lantana ‘Mohican’ Mohican Wayfaring Tree Small Shrub Low 6’-8’ x 6’-8’ Viburnum lentago Nannyberry Viburnum Large Shrub Low 8’-15’ x 6’-8’ Viburnum spp. Viburnum varieties Small to Large Shrub Moderate Varies Viburnum x rhytidophylloides ‘Alleghany’ Alleghany Viburnum Large Shrub Low 8’-10’ x 6’-8’ Vinca minor Evergreen Periwinkle Perennial/Groundcover Low 8”-10” x 2’ May spread or sucker Viola corsica Corscian Violet Perennial/Groundcover Low 4” x 4” Will spread by seed or reseed Vitis spp. Grapes Vine Moderate Will likely climb or scramble Waldsteinia fragaroides Barren Strawberry Perennial/Groundcover Low 4”-6” x 24” May spread or sucker Weigelia spp. Weigelia varieties Small Shrub Moderate Varies Yucca baccata * Banana Yucca Small Shrub Low 3’ -4’ x 3’-5’ Adam’s Needle Yucca, Bear Yucca filamentosa Grass Small Shrub Low 2’-3’ x 3’-4’ Soapweed Yucca, Spanish Yucca glauca ‡* Bayonette Small Shrub Low 1’-2’ x 2’-4’ Zauschneria spp. Hummingbird Plant varieties Perennial/Groundcover Low 2’-3’ x 2’ PROHIBITED SPECIES Alhagi pseudalhagi Camelthorn List-A: Eradication Centaurea pratensis Meadow Knapweed List-A: Eradication Centaurea solstitialis Yellow Starthistle List-A: Eradication Centaurea virgata Squarrose Knapweed List-A: Eradication Chondrilla juncea Rush Skeletonweed List-A: Eradication Crupina vulgaris Common Crupina List-A: Eradication Euphorbia cyparissias Cypress Spurge List-A: Eradication Euphorbia pyrsinites Myrtle Spurge List-A: Eradication Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Hieracium aurantiacum Orange Hawkweed List-A: Eradication Hydrilla verticillata Hydrilla List-A: Eradication Isatis tinctoria Dyer’s Woad List-A: Eradication Lespedeza cuneata Sericea Lespedeza List-A: Eradication Lytrum salicaria Purple Loosestrife List-A: Eradication Peganum harmala African Rue List-A: Eradication Salvia aethiopis Mediteranean Sage List-A: Eradication Salvinia molesta Giant Salvinia List-A: Eradication Senecio jacobaea Tansy Ragwort List-A: Eradication Acroptilon repens Russian Knapweed List-B: Noxious Weed Anoda cristata Spurred Anoda List-B: Noxious Weed Anthemis arvensis Corn Chamomile List-B: Noxious Weed Anthemis cotula Mayweed Chamomile List-B: Noxious Weed Artemesia absinthium Absinth Wormwood List-B: Noxious Weed Cardaria draba Hoary Cress List-B: Noxious Weed Carduus acanthoides Plumeless Thistle List-B: Noxious Weed Carduus nutans Musk Thistle List-B: Noxious Weed Carum carvi Wild Caraway List-B: Noxious Weed Centaurea diffusa Diffuse Knapweed List-B: Noxious Weed Centaurea maculosa Spotted Knapweed List-B: Noxious Weed Chrysanthemum ieucanthemum Oxeye Daisy List-B: Noxious Weed Cirsium arvense Canada Thistle List-B: Noxious Weed Cirsium vulgare Bull Thistle List-B: Noxious Weed Clematis orientalis Chinese Clematis List-B: Noxious Weed Cynoglossum officinale Houndstongue List-B: Noxious Weed Cyperus esculentus Yellow Nutsedge List-B: Noxious Weed Dipsacus fullonum Common Teasel List-B: Noxious Weed Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Dipsacus laciniatus Cutleaf Teasel List-B: Noxious Weed Elaeagnus angustifolia Russian Olive List-B: Noxious Weed Elytrigia repens Quackgrass List-B: Noxious Weed Erodium cicutarium Redstem filaree List-B: Noxious Weed Euphorbia esula Leafy Spurge List-B: Noxious Weed Hesperis matronalis Dames’s Rocket List-B: Noxious Weed Hibiscus trionum Venice Mallow List-B: Noxious Weed Hyoscyamus niger Black Henbane List-B: Noxious Weed Lepidium latifolium Perennial Pepperweed List-B: Noxious Weed Broad-leaved Dalmation Linaria dalmatica Toadflax List-B: Noxious Weed Narrow-leaved Dalmation Linaria genistifolia Toadflax List-B: Noxious Weed Linaria vulgaris Yellow Toadflax List-B: Noxious Weed Matricaria perforata Scentless Chamomile List-B: Noxious Weed Myriophyllum spicatum E urasian Watermilfoil List-B: Noxious Weed Onopordum acanthium ScotchThistle List-B: Noxious Weed Onopordum tauricum ScotchThistle List-B: Noxious Weed Potentilla recta Sulfur cinquefoil List-B: Noxious Weed Saponaria officinalis Bouncingbet List-B: Noxious Weed Tamarix chinensis Salt Cedar, Tamarisk List-B: Noxious Weed Tamarix parvifolia Salt Cedar, Tamarisk List-B: Noxious Weed Tamarix ramosissima Salt Cedar, Tamarisk List-B: Noxious Weed Tanacetum vulgare Common Tansy List-B: Noxious Weed Verbascum blattaria Moth Mullein List-B: Noxious Weed Abutilon theophrast Velvetleaf List-C: Noxious Weed Aegilops cylindrica Jointed Goatgrass List-C: Noxious Weed Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Arctium minus Common Burdock List-C: Noxious Weed Bromus tectorum Downy Brome/ Cheat Grass List-C: Noxious Weed Chichorium intybus Chicory List-C: Noxious Weed Conium maculatum Poison Hemlock List-C: Noxious Weed Convolvulus arvensis Field Bindweed List-C: Noxious Weed Halogeton glomeratus Halogeton List-C: Noxious Weed Hypericum perforatum Common St. Johnswort List-C: Noxious Weed Panicum miliaceum Wild Proso Millet List-C: Noxious Weed Sonchus arvensis Perennial Sowthistle List-C: Noxious Weed Sorghum halepense Johnsongrass List-C: Noxious Weed Tribulus terrestris Puncturevine List-C: Noxious Weed Verbascum thapsus Common Mullein List-C: Noxious Weed Acer negundo Boxelder, Ash-leaved Maple Local ‘Problem Species’ Ailanthus altissima Tree of Heaven Local ‘Problem Species’ Phellodendron amurense Amur Corktree Local ‘Problem Species’ Populus deltoides (cottonbearing female) Cottonwood (Female Only) Local ‘Problem Species’ Salix matsudana Globe Willow/ Navajo Willow Local ‘Problem Species’ Ulmus parvifolia Chinese Elm/ Lacebark Elm Local ‘Problem Species’ Ulmus pumilla Siberian Elm Local ‘Problem Species’ Amaranthus retroflenus Redroot Pigweed CSU: Nuisance Weed Capsella bursa-pastoris Shepherd’s Purse CSU: Nuisance Weed Chamaesyce maculate Prostrate Spurge CSU: Nuisance Weed Chenopodium beriandieri Netseed Lambsquarters CSU: Nuisance Weed Digitaria sanguinalis Crabgrass CSU: Nuisance Weed Kochia scoparia Kochia CSU: Nuisance Weed Lactuca serriola Prickly Lettuce CSU: Nuisance Weed Vegetation List

‡ Regional Native | * Very Low Water Requirements Water Size Scientific Name Common Name Plant Type Use (height x width) Comments Malva neglecta Common Mallow CSU: Nuisance Weed Melilotus officinalis Yellow Sweet Clover CSU: Nuisance Weed Oxalis corniculata Creeping Woodsorrel CSU: Nuisance Weed Polygonum aviculare Prostrate Knotweed CSU: Nuisance Weed Portulaca oleracea Common Purslane CSU: Nuisance Weed Rumex crispus Curly Dock CSU: Nuisance Weed Setaria viridis Green Foxtail CSU: Nuisance Weed Trifolium repens White Clover CSU: Nuisance Weed Viola spp. Wild Violet CSU: Nuisance Weed Excluding cultivated varieties