Department of Planning and Building Services 380 A Avenue Post Office Box 369 Lake Oswego, OR 97034 503-635-0290 www.lakeoswego.city/trees Native Tree Mitigation List for Type II Tree Removal (Not for Sensitive Lands Mitigation) LOC 55: Appendix 55.02-1 Native Mitigation Tree List. LESS THAN 50 FT (15 M) HIGH NEEDLE- OR SCALE-LEAVED (CONIFERS) Baker Cypress, Modoc Cypress [Cupressus bakeri] Western Juniper [Juniperus occidentalis] Rocky Mountain Juniper [Juniperus scopulorum] Whitebark Pine [Pinus albicaulis] Knobcone Pine [Pinus attenuata] Shore Pine [Pinus contorta var. contorta] Limber Pine [Pinus flexilis] Pacific or Western Yew [Taxus brevifolia] Columbia River Willow [Salix fluviatilis] Pacific Willow [Salix lasiandra] Scouler’s Willow [Salix scouleriana] Sitka Willow [Salix sitchensis] BROAD-LEAVED (DECIDUOUS) Pacific Dogwood [Cornus nuttallii] [Note: Acceptable disease (anthracnose)-resistant cultivar substitutes: Starlight® dogwood (Cornus kousa x nuttallii ‘Starlight’) and Venus® dogwood (Cornus kousa x nuttallii ‘Venus’).] Douglas Hawthorn [Crataegus douglasii] Oregon Crabapple, Pacific Crabapple [Malus fusca] Bitter Cherry [Prunus emarginata] Cascara, Chittam, Cascara Buckthorn [Rhamnus purshiana] 50-75 FT (15-23 M) HIGH NEEDLE- OR SCALE-LEAVED (CONIFERS) Subalpine Fir, Rocky Mountain Fir [Abies lasiocarpa] Brewer Spruce [Picea breweriana] Port Orford Cedar, Lawson Falsecypress [Chamaecyparis lawsoniana] [Note: acceptable disease (Phytophthora lateralis)-resistant cultivar if no height requirement of greater than 30 ft.: Silver Queen Port Orford Cedar (Chamaecyparis lawsoniana ‘Silver Queen’).] BROAD-LEAVED (DECIDUOUS AND EVERGREEN) White Alder [Alnus rhombifolia] Red Alder [Alnus rubra] Paper Birch [Betula papyrifera] Narrowleaf Cottonwood [Populus angustifolia] Quaking Aspen [Populus tremuloides] Canyon Live Oak [Quercus chrysolepis] Oregon White Oak [Quercus garryana] California Black Oak [Quercus kelloggii] 75-100 FT (23-30 M) HIGH NEEDLE- OR SCALE-LEAVED (CONIFERS) Incense Cedar [Calocedrus decurrens] Alaska Cedar, Yellow Cedar [Chamaecyparis nootkatensis (syn. Xanthocyparis nootkatensis)] Englemann Spruce [Picea engelmannii] Lodgepole Pine [Pinus contorta var. latifolia] Mountain Hemlock [Tsuga mertansiana] BROAD-LEAVED (DECIDUOUS AND EVERGREEN) Bigleaf Maple [Acer macrophyllum] Pacific Madrone [Arbutus menziesii] Oregon Ash [Fraxinus latifolia] Tan Oak [Lithocarpus densiflorus] Oregon Myrtle, California Bay [Umbellularia californica] MORE THAN 100 FT (30 M) HIGH NEEDLE OR SCALE-LEAVED (CONIFERS) Pacific Silver Fir [Abies amabilis] White Fir [Abies concolor] Grand Fir [Abies grandis] California Red Fir [Abies magnifica] Noble Fir [Abies procera] Western Larch [Larix occidentalis] Sitka Spruce [Picea sitchensis] Jeffrey Pine [Pinus jeffreyi] Sugar Pine [Pinus lambertiana] Western White Pine [Pinus monticola] Willamette Valley Ponderosa Pine [Pinus ponderosa var. willamettenis] Douglas Fir [Pseudotsuga menziesii] Coast Redwood [Sequoia sempervirens] Western Red Cedar [Thuja plicata] Western Hemlock [Tsuga heterophylla] BROAD-LEAVED (DECIDUOUS AND EVERGREEN) Golden Chinkapin [Chrysolepis chrysophylla] Black Cottonwood [Populus trichocarpa] 2 .