Water Use Table for the Approved Gray's Crossing Plant List Reference List for the Water Efficient Landscape Ordinance If you are using plants from the Gray's Crossing Approved Plant List, use the water use identified in this list to help fill out Worksheet A.

Category Botanical Name Common Name Natural Improvement Drainages/ Wet Water Use Areas Envelope areas Trees Acer circinatum Vine Maple X High Acer ginnala Amur Maple X Moderate Acer grandidentatum Rocky Mt. Maple X Moderate Alnus incana ssp. tenuifolia Mountain Alder X X X High Betula occidentalis 'Fontinalis' Water Birch X X High Picea pungens Colorado Spruce X Moderate Pinus contorta ssp. murrayanna Lodgepole Pine X Moderate Pinus jeffreyi Jeffrey Pine X X Low Pinus ponderosa Ponderosa Pine X X Low Populus tremuloidies Quaking Aspen X X X High Prunus cistena Purple Sand Cherry X Moderate Prunus sp. (Shupert) Cherry X Moderate Prunus spp. Crabapple/Apple X Moderate Prunus virginiana Chokecherry X X Moderate Salix scouleriana Scouler's Willow X X X High Sorbus aucuparia Mountain Ash X Moderate Shrubs Amelanchier alnifolia Serviceberry X X Moderate Amelanchier utahensis Serviceberry X X Moderate Artemisia tridentata ssp vaseyana Mountain Sagebrush X Very Low Chrysothamus nauseous Rabbit Brush X X Low Cornus sericea Red Twig Dogwood X High Cornus sericea 'Flaviramea' Yellow-Twig Dogwood X High Pinus mugo mugo Mugo Pine X Low Potentilla fruticosa Shrubby Cinquefoil X X Moderate Potentilla fruticosa (hybrids) Shrubby Cinquefoil X Moderate Purshia tridentata Bitterbrush X X Low Rhus typhina Staghorn sumac X Low Ribes aureum Golden Currant X X Moderate Ribes nevadense Sierra Currant/Mt. Pink Current X X Moderate Rosa glauca Red Stem Rose X Moderate Rosa harisonii Harrison's Yellow Rose X Moderate Rosa rugosa Tomato Rose X Moderate Rosa woodsii var.ultramontana Mountain Rose X X X Moderate Rubus parvifolius Thimbleberry X X X Low Salix purpurea var. nana Dwarf Purple Willow X X High Sambucus caerula Blue Elderberry X X Low Spiraea densiflora Mountain Spiraea X X X Moderate Spiraea douglasii Western Spiraea X Moderate Spiraea nipponica Snowmound Spiraea X Moderate Spiraeasp. (Goldflame) Goldflame Spiraea X Moderate Syringia spp. Lilac X Moderate Viburnum trilobum Cranberry Bush X Moderate

For questions, please contact the Planning Division at (530) 582-7820, ext 2. Page 1 Water Use Table for the Approved Gray's Crossing Plant List Reference List for the Water Efficient Landscape Ordinance If you are using plants from the Gray's Crossing Approved Plant List, use the water use identified in this list to help fill out Worksheet A.

Category Botanical Name Common Name Natural Improvement Drainages/ Wet Water Use Areas Envelope areas Vines Clematis spp. Clematis species X Moderate Humulus lupulus Hops X Moderate Ground Covers Ajuga repens Ajuga X Moderate Arctostaphylos uva-ursi Kinnikkinnick X Moderate Berberis aquifolium (repens) Creeping Mahonia X X Low Ceanothus prostratus Squaw carpet X X Low Cotoneaster dammeri 'eicholtz' Cotoneaster X Low Fragaria sp. Strawberry X Moderate Galium oderatum Sweet Woodruff X Moderate Potentilla verna var. nana Potentilla X Moderate Symphorcarpos mollis Creeping Snowberry X X Low Symphorcarpos sp. (Hancock) Coral berry Snowberry X Low Thymus spp. Thyme X Moderate Perennials Achillea millefolium Yarrow X X Low Aconitum columbiana Monkshood X X X High Aquilegia spp. Columbine X Low Castilleja sp. Indian Paintbrush X Low Carex sp. Sedge X X Moderate-Low (Check specific species) Delphinium sp. (ornamental) Larkspur X Moderate Dicentra formosa and other ssp. Bleeding Heart X Moderate Echinacea purpurea Purple Cone Flower X Moderate Epilobium canum California Fuschia X X Low Erigonum umbellatum Sulfur Buckwheat X Low Eriophyllum lanatum Wooly sunflower X X Low Eshscholzia californica California poppy X X Very Low Geum triflorum (ornamentals) Prairie smoke X Moderate Iris sibirica Siberian Iris X Moderate Juncus spp. Rush X X Moderate-High (Check specific species) Linum lewisii Mountain flax X X Very Low Lupinus polyphyllus Large Leaf Lupine X X X Moderate Lupinus sp. (Russel hybrids and other onamentals) Lupine X X Moderate Nepeta sibirica and other spp. Cat Mint X Low Paeonii sp. Peony High Penstemon heterophyllus Penstemon X X Low Penstemon newberryi X X Low Penstemon rydbergii X X X Low Penstemon speciosus X X Low Penstemon spectabilis X Low Rudbeckia sp. (Goldstrum) Black-eyed Susan X Moderate

For questions, please contact the Planning Division at (530) 582-7820, ext 2. Page 2 Water Use Table for the Approved Gray's Crossing Plant List Reference List for the Water Efficient Landscape Ordinance If you are using plants from the Gray's Crossing Approved Plant List, use the water use identified in this list to help fill out Worksheet A.

Category Botanical Name Common Name Natural Improvement Drainages/ Wet Water Use Areas Envelope areas Ornamental Grasses Calamagrostis spp. Feather Reed Grass X Moderate Elymus elymoides Squirreltail X X X Low Festuca ovina Sheep Fescue X Moderate Festuca trachyphylla Hard Fescue X X Low Festuca sp. (Blue Fescue) Blue Fescue X Moderate Miscanthus sinensis. Japanese Silver Grass X Moderate Panicum canadensis X Low Panicum capillare X Low Panicum spp. Switch Grass X Low Panicum stricta X Low Turf Grasses Festuca sp. Warwick Hard Fescues X Low Festuca sp. Spartan Fescue X Unknown Festuca sp. Sierra Fescue X Moderate Festuca sp. (rubra) Red Fescue X Moderate

For questions, please contact the Planning Division at (530) 582-7820, ext 2. Page 3