Related by context. Frequent words. (Click for all words.) 62 invasive weed 62 barberry 62 noxious weed 61 ragwort 60 lupine 60 thistles 60 lupines 59 eucalypts 59 tussock 58 Japanese knotweed 58 cattail 58 vetch 58 chickweed 58 lupins 57 anthracnose 57 leafy spurge 57 downy mildew 57 shrubby 57 noxious weeds 57 purple loosestrife 57 spider mites 56 salvias 56 lantana 56 insect pests 56 horsetail 56 knotweed 56 prickly pear 56 water hyacinth 56 whitefly 56 phragmites 56 knapweed 55 powdery mildew 55 bracken 55 thistle 55 pine plantations 55 phlox 55 insect pest 55 jack pine 55 Phytophthora 54 fungal disease 54 larkspur 54 invasive pest 54 grasses 54 lodgepole pine 54 coneflower 54 dandelions 54 invasive weeds 54 coneflowers 54 bindweed 54 buckthorn 54 spp 54 alyssum 54 giant hogweed 54 hyacinth 53 Eurasian milfoil 53 stripe rust 53 coreopsis 53 pine plantation 53 crabapple 53 salt cedar 53 grassland birds 53 pine beetle 53 moth 53 fungus 53 bark beetle 53 Sudden Oak 53 beetle 53 wildflowers 53 oleanders 53 weevils 53 invasive species 53 mallow 53 poplars 53 cheatgrass 53 aphid 53 sedge 53 willows 53 aspen 53 honeysuckle 52 fynbos 52 pests 52 manzanita 52 grasshoppers 52 goldenrod 52 fern 52 whiteflies 52 Didymo 52 hawthorn 52 milkweed 52 beetle infestation 52 primroses 52 aphids 52 sedges 52 shrub 52 clover 52 hemlock trees 52 deciduous trees 52 rhododendron 52 nasturtium 51 root rot 51 aspen trees