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Drooping trillium or Trillium flexipes is a herbaceous, early spring ephemeral and perennial of rich, deciduous forests usually associated with watercourses. It is found in 23 US states, but in Canada there are only two extant populations in Middlesex and Elgin counties, southern Ontario. This report describes the species and reviews its geographic distribution, biological and economic significance, general environment and habitat characteristics, population biology and ecology, land ownership and management responsibility, and management practices and experience. Factors limiting the survival and spread of the species are discussed and the current status of protection of the species is reviewed. Finally, the current status of the species is assessed along with its future prognosis, and a conservation status ranking as an endangered species is recommended.
Focusing on the oft-overlooked herbaceous layer of eastern forests, this volume combines perspectives from different levels of biological organization (ecophysiology to ecosystems) and forest types (from the eastern boreal forest to southeastern pine forests) into a synthesis of our knowledge of the ecology of this important forest layer. This is the first book of its kind to synthesize information concerning herbaceous layer structure, composition, and dynamics of a variety of forest ecosystem types in eastern North America. With over 1,200 references cited in the 14 chapters, this book represents the most comprehensive review of literature on the ecology of the herbaceous layer.