Related by context. Frequent words. (Click for all words.) 64 sequoias 62 giant sequoia 60 aspen trees 59 Douglas fir trees 59 bur oak 58 Ponderosa pine 58 tulip tree 57 redwoods 57 manzanita 57 tamarack 57 piñon 56 giant sequoias 56 sycamore 55 redwood forest 55 ponderosa pines 55 timberline 55 conifers 55 hackberry 55 beech trees 55 Teton Range 55 oak woodlands 54 ceanothus 54 junipers 54 sandstone formations 54 aspen 54 cottonwood 54 saguaro cactus 54 beeches 54 penstemon 54 evergreen forests 54 lichen 54 coniferous trees 54 temperate forests 54 ponderosa 53 ponderosa pine 53 columbines 53 hickories 53 Douglas firs 53 conifer trees 53 grassy plains 53 eucalypts 53 yuccas 53 lodgepole 53 cottonwoods 52 redbud 52 deciduous forests 52 mulberry tree 52 bottlebrush 52 lodgepole pine 52 sequoia 52 cottonwood trees 52 redwood 52 Douglas fir 52 landform 52 sagebrush 52 redwood trees 52 Olympus Mons 52 aspens 52 radiocarbon dated 51 tussock 51 sycamore trees 51 cycad 51 flowering shrub 51 serviceberry 51 knolls 51 jack pine 51 mesquite trees 51 tulip poplar 51 Ardipithecus ramidus 51 longleaf pines 51 hemlock trees 51 sugar maple 51 Amazonian rainforest 51 Sitka spruce 51 juniper 51 saguaro 51 tree ferns 51 cypresses 51 shrubby 51 barrens 50 walnut trees 50 sycamores 50 oak woodland 50 scrub oak 50 conifer 50 weeping willow 50 rocky slopes 50 Scotch pine 50 Euphorbia 50 agaves 50 deciduous tree 50 Namib Desert 50 lupines 50 hardwood forest 50 river birch 50 Virginia creeper 50 Botanists 50 oaks 50 Superstition Mountains 49 salal 49 feathered dinosaurs