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Trees

Trees are plants growing over 15ft tall with woody stems that live for many years. Shrubs also have woody stems but grow less than 15ft tall; they are included in their respective flower color/shape pages.

Prunus armeniaca
Apricot
Prunus armeniaca
Populus tremuloides
Aspen
Populus tremuloides
Robinia pseudoacacia
Black Locust
Robinia pseudo.
Betula glandulosa
Bog Birch
Betula glandulosa
Acer negundo
Boxelder Maple
Acer negundo
Picea pungens
ColoradoBlue Spruce
Picea pungens
Populus spp.
Cottonwood(2)
Populus spp.
Pseudotsuga menziesii
Douglas Fir
Pseudotsuga menz.
Picea englemannii
Engelmann Spruce
Picea englemannii
Juniperus spp.
Juniper(5)
Juniperus spp.
Pinus flexilis
Limber Pine
Pinus flexilis
Pinus contorta
Lodgepole Pine
Pinus contorta
Alnus incana tenufolia
Mountain Alder
Alnus incana
Ptelea trifoliata
Narrowleaf Hoptree
Ptelea trifoliata

Netleaf Hackberry
Celtis reticulata
Forestiera pubescens
New Mexico Olive
Forestiera pubescens
Catalpa speciosa
Northern Catalpa
Catalpa speciosa
Quercus spp.
Oak(3)
Quercus spp.
Pinus edulis
Piñon Pine
Pinus edulis
Pinus ponderosa
Ponderosa Pine
Pinus ponderosa
Populus deltoides ssp. wislizeni
Rio Grande Cottonwood
Populus deltoides
Betula occidentalis
Rocky Mountain Birch
Betula occidentalis
Acer glabrum
Rocky Mountain Maple
Acer glabrum
Elaegnus angustifolia
Russian Olive
Elaegnus angustifolia
 
Ulmus pumila
Siberian Elm
Ulmus pumila
Caragana arborescens
Siberian Peashrub
Caragana arbor.
Fraxinus anomola
Single Leaf Ash
Fraxinus anomola
Viburnum opulus
Snowball Tree
Viburnum opulus
Abies bifolia
Subalpine Fir
Abies bifolia
Tamariz pentandra
Tamarisk
Tamariz pentandra
Lonicera tatarica
TatarianHoneysuckle
Lonicera tatarica
Prunus virginiana
WesternChokecherry
Prunus virginiana
Abies concolor
White Fir
Abies concolor
Prunus americana
Wild Plum
Prunus americana
Salix spp.
Willow(13)*
Salix spp.