Related by context. Frequent words. (Click for all words.) 70 lodgepole 66 lodgepole pine 66 lodgepole pines 65 piñon 65 sequoias 64 ponderosa pines 63 mountain pine beetles 62 beetle infestations 62 ponderosa 62 deciduous forests 62 beetle infestation 61 Ponderosa pines 61 Ponderosa pine 60 aspen trees 60 aspen 60 sagebrush 60 tamarack 59 hemlock trees 59 hickories 59 barrens 58 aspens 58 coniferous trees 58 bark beetle infestation 58 grassy plains 58 pine beetle infestation 58 pine beetles 58 Gypsy moths 58 lichen 58 jack pine 57 bark beetle 57 evergreen forests 57 bark beetles 56 cottonwood 56 ponderosa pine 56 temperate forests 56 conifer trees 56 clearcuts 56 juniper trees 56 forest canopies 56 pine forests 56 Bighorn sheep 55 scrub oak 55 Douglas fir trees 55 alfalfa fields 55 dense brush 55 cheatgrass 55 pine beetle epidemic 55 longleaf pines 55 wheat stubble 55 oak woodlands 55 knapweed 55 hackberry 55 forests 55 hardwood trees 55 understory 54 beech trees 54 timberline 54 bur oak 54 cottontail rabbits 54 conifers 54 spotted knapweed 54 shrubby 54 junipers 54 hemlocks 54 Poison ivy 54 forbs 54 sawfly 54 Emerald ash borer 54 pine trees 54 Mule deer 54 adelgids 54 fescue grass 54 brushland 54 Amazonian rainforest 54 lowland forests 54 spruce trees 54 hardwood forests 54 chaparral 53 Invasive plants 53 insect infestations 53 deciduous forest 53 salt cedar 53 birches 53 oak woodland 53 boreal forests 53 fungus 53 beeches 53 virgin forest 53 Greater Yellowstone Ecosystem 53 buffelgrass 53 pine forest 53 juniper 53 serviceberry 53 giant sequoia 53 Douglas fir 53 Douglas firs 53 manzanita 53 tamarisk 53 fir trees 52 eucalypts 52 beaver ponds