Indicator plant species in Canadian forests

the long version

"Plant species that convey information about the ecological nature of a site are known as indicator species. A wide variety of site conditions including soil nutrient and moisture regimes, forest humus types, soil reaction, and general soil type can be determined from the presence of plant species." "This field guide is an introduction to the concept of plants as indicators of environmental conditions within Canada's forests. It provides information on the identification, ecology, geographic range, and indicator value of 80 selected vascular plants, mosses, and lichens. Indicator Plant Species in Canadian Forests will be of interest to resource planners, foresters, ecologists, botanists, naturalists, and anyone who wishes to know more about forest plants and what they tell us about the sites they occupy."--Jacket.