Related by context. Frequent words. (Click for all words.) 61 catalpa 61 giant sequoia 59 cabbage palms 59 pinyon 59 bur oak 57 tulip tree 57 Pinus 57 Ponderosa pines 57 californica 57 madrone 57 tamarack 57 winterberry 57 sequoias 56 deciduous shrub 56 tulip poplars 56 cycad 56 montane 56 bald cypress 55 oak pine 55 Euphorbia 55 manzanita 55 penstemon 55 holly tree 55 orchid species 55 Rudbeckia 55 beech trees 55 ceanothus 55 staghorn 55 conifer forests 55 Ponderosa pine 55 aspen groves 54 penstemons 54 subalpine 54 giant sequoias 54 euphorbia 54 aspen trees 54 flowering dogwood 54 deciduous tree 54 plumbago 54 Cycads 54 juniper tree 54 perennial herb 54 Wollemi Pine 54 lupines 54 elegans 54 barrens 54 grassy meadows 53 Variegated 53 red cedars 53 lady slipper 53 kipunji 53 katydid 53 staghorn coral 53 wax myrtle 53 camas 53 conifer trees 53 sweetgum 53 columbines 53 canadensis 53 tupelo 53 waterlily 53 trumpet vine 53 ocotillo 53 tulip poplar 53 oak hickory 53 killifish 53 lichen covered 53 cotoneaster 53 mixed conifer 53 aspen stands 52 yuccas 52 Douglas fir trees 52 Coreopsis 52 beeches 52 conifer 52 coniferous trees 52 redwood forest 52 giant tortoise 52 frogs salamanders 52 agaves 52 Mount Lassen 52 species 52 piñon 52 dwarf conifers 52 Deciduous 52 yellow legged frogs 52 junipers 52 evergreen shrub 52 hickories 52 bromeliad 52 deciduous forests 52 native prairie grasses 52 ponderosa 52 Salamanders 52 conifers 51 waterlilies 51 hackberry 51 jack pine 51 Columbian mammoth 51 Big Basin Redwoods 51 vertebrate species