Related by context. Frequent words. (Click for all words.) 57 ponderosa pines 57 redwood trees 57 redwoods 55 aspen trees 55 cottonwoods 54 junipers 54 oak woodlands 53 oak trees 53 oaks 52 conifers 51 hemlocks 51 saguaros 50 beech trees 50 manzanita 49 Douglas firs 49 lodgepole pine 49 species 49 woody plants 49 pecan trees 48 cottonwood trees 48 aspen 48 lodgepole pines 48 cottonwood 48 cedars 48 trees 47 spruce trees 47 redwood tree 47 walnut trees 47 forest ecosystems 47 aspens 47 redwood 47 sycamore 47 rhododendron 47 lichen 47 pine trees 46 riparian habitat 46 fig trees 46 amphibian species 46 biologically diverse 46 ecosystems 46 deciduous trees 46 understory 46 wildflowers 46 vines 45 grasslands 45 sycamores 45 elms 45 maples 45 hardwood forests 45 birches 45 catastrophic wildfires 45 rhododendrons 45 eucalyptus trees 45 bark beetles 44 pines 44 forests 44 evergreen trees 44 evergreens 44 flowering trees 44 cherry trees 44 cypress trees 44 juniper trees 44 sagebrush 44 conifer 43 hardwood trees 43 fir trees 43 magnolia trees 43 shrub 43 dogwood 43 lupine 43 Douglas fir 43 pikas 43 tamarisk 43 blueberry bushes 43 lichens 43 scenic vistas 43 freshwater lakes 43 saguaro 43 ponderosa pine 43 cacti 43 bird species 43 grapevines 42 invasive weeds 42 forest canopy 42 wildflower 42 boreal forests 42 desert tortoise 42 crape myrtles 42 Japanese maples 42 seedlings 42 grove 42 tropical rainforests 42 ferns 42 chaparral 42 flowering plants 42 cottonwood tree 42 poplars 42 dogwoods 42 phlox 42 mosses 42 chestnut trees