Studied by 5 people
Ginkgo
(Ginkgo biloba)
Pacific Yew
(Taxus brevifolia)
Balsam Fir
(Abies balsamea)
White Fir
(Abies concolor)
Grand Fir
(Abies grandis)
Subalpine Fir
(Abies lasiocarpa)
Western Larch
Larix occidentalis
Tamarak or Eastern Larch
(Larix laricina)
Engelman Spruce
(Picea engelmannii)
White Spruce
(Picea glauca)
Blue Spruce
(Picea pungens)
Douglas Fir
(Pseudotsuga menziesii)
Red Spruce
(Picea rubens)
Sitka Spruce
(Picea sitchensis)
Whitebark Pine
(Pinus albicaulis)
Bristlecone Pine
(Pinus aristata)
Knobcone Pine
(Pinus attenuata)
Jack Pine
(Pinus banksiana)
Lodgepole Pine
(Pinus contorta)
Shortleaf Pine
(Pinus echinita)
Pinyon
(Pinus edulis)
Limber Pine
(Pinus flexilis)
Sugar Pine
(Pinus lambertiana)
Singleleaf Pinyon
(Pinus monophylla)
Western White Pine
(Pinus monticola)
Longleaf Pine
(Pinus palustris)
Ponderosa Pine
(Pinus ponderosa)
Red Pine
(Pinus resinosa)
Pitch Pine
(Pinus rigida)
Eastern White Pine
(Pinus strobus)
Loblolly Pine
(Pinus taeda)
Virginia Pine
(Pinus virginiana)
Eastern Hemlock
(Tsuga canadensis)
Western Hemlock
(Tsuga heterophylla)
Mountain Hemlock
(Tsuga mertensiana)
Port-Orford-Cedar or Oregon Cedar
(Chamaecyparis lawsoniana)
Monterey Cypress
(Cupressus macrocarpa)
Utah Juniper
(Juniperus osteosperma)
Rocky Mountain Juniper
(Juniperus scopulorum)
Eastern Redcedar
(Juniperus virginiana)
Northern White-Cedar
(Thuja occidentalis)
Western Redcedar
(Thuja plicata)
Cabbage Palmetto
(Sabal palmetto)
California Palm
(Washingtonia filifera)
Narrowleaf Cottonwood
(Populus angustifolia)
Balsam Poplar
(Populus balsamifera)
Eastern Cottonwood
(Populus deltoides)
Fremont Cottonwood
(Populus fremontii)
Bigtooth Aspen
(Populus grandidentata)
Quaking Aspen
(Populus tremuloides)
Black Cottonwood
(Populus trichocarpa)
Bebb Willow
(Salix bebbiana)
Black Willow
(Salix Nigra)
Scouler Willow
(Salix Scouleriana)
Bitternut Hickory
Carya cordiformis)
Pignut Hickory
(Carya glabra)
Pecan
(Carya illinoinensis)
Shagbark Hickory
(Carya ovata)
Butternut
(Juglans cinerea)
Black Walnut
(Juglans nigra)
Red Alder
(Alnus rubra)
Yellow Birch
(Betula alleghaniensis)
Sweet Birch
(Betula lenta)
Water Birch
(Betula occidentalis)
Paper Birch
(Betula papyrifera)
Gray Birch
(Betula populifolia)
American Hornbeam
(Carpinus caroliniana)
American Hornbeam
(Carpinus caroliniana)
Eastern Hophornbeam
(Ostrya virginiana)
American Chestnut
(Castanea dentata)
American Beech
(Fagus grandifolia)
Tanoak
(Lithocarpus densiflorus)
Coast Live Oak
(Quercus agrifolia)
White Oak
(Quercus alba)
Swamp White Oak
(Quercus bicolor)
Canyon Live Oak
(Quercus chrysolepis)
Blue Oak
(Quercus Douglasii)
Southern Red Oak
(Quercus falcata)
Oregon White Oak
(Quercus garryana)
Shingle Oak
(Quercus imbricaria)
California Black Oak
(Quercus kelloggii)
Bur Oak
(Quercus macrocarpa)
Chinkapin Oak
(Quercus muhlenbergii)
Pin Oak
(Quercus palustris)
Chesnut Oak
(Quercus prinus)
Northern Red Oak
(Quercus rubra)
Black Oak
(Quercus velutina)
Live Oak
(Quercus virginiana)
Hackberry
(Celtis occidentalis)
American Elm
(Ulmus americana)
Slippery Elm
(Ulmus rubra)
Osage-orange
(Maclura pomifera)
White Mulberry
(Morus alba)
Red Mulberry
(Morus rubra)
Yellow Poplar
(Liriodendron tulipifera)
Southern Magnolia
(Magnolia grandiflora)
Bigleaf Magnolia
(Magnolia macrophylla)
Pawpaw
(Asimina triloba)
Sassafras
(Sassafras albidum)
California-laurel
(Umbellularia californica)
Note 
Flashcard (41)