Related by context. Frequent words. (Click for all words.) 63 acidic soils 62 sphagnum moss 60 soils 58 mycelium 58 alkaline soils 58 decaying vegetation 58 moss 57 coniferous trees 57 Flowering plants 57 cordgrass 57 mosses 56 Sedum 56 mycorrhizal fungi 56 Fescue 56 moist soils 56 calcareous 56 perennial herb 55 Rhododendrons 55 lichen 55 alkaline soil 55 mullein 55 lake sediments 55 acidic soil 55 Cyanobacteria 55 marine sediments 55 taproots 55 fungi 55 nitrogen fixing 54 deciduous forests 54 sedge 54 absorbs carbon dioxide 54 cattail 54 catmint 54 epiphytes 54 grasses 54 lichens 54 Poison ivy 54 photosynthesizing 54 saltbush 54 Miscanthus 54 alga 54 Penicillium 53 sweet clover 53 flora 53 Germination 53 unsprayed 53 euphorbia 53 sedges 53 fertile soils 53 variegated foliage 53 coniferous forests 53 herbaceous perennials 53 temperate forests 53 seedheads 53 pine bark 53 humic acid 53 nutrient uptake 53 pasture grasses 53 Euphorbia 53 barrens 53 croton 53 woody plants 53 photosynthetic organisms 53 xylem 53 sandy soils 53 shrubby 53 mushroom compost 53 drained soils 53 arid climates 53 horsetail 52 mucilage 52 nitrogen fixation 52 rosehips 52 Impatiens 52 ferns 52 Lichens 52 heathers 52 prickly pears 52 aquatic invertebrates 52 evergreen foliage 52 reedbeds 52 sandy loam 52 fruiting bodies 52 refugia 52 goethite 52 moorlands 52 mildew resistant 52 arsenate 52 bayberry 52 pondweed 52 Japanese Knotweed 52 inoculants 52 madrone 52 diatoms 52 tannic acid 52 tupelo 52 exudates 52 terpenes 52 californica 52 saline aquifers 52 peat bogs