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Field Guide to the Sedges of the Pacific Northwest [Minkštas viršelis]

  • Formatas: Paperback / softback, 432 pages, illustrations
  • Išleidimo metai: 01-May-2008
  • Leidėjas: Oregon State University
  • ISBN-10: 0870711970
  • ISBN-13: 9780870711978
Kitos knygos pagal šią temą:
  • Formatas: Paperback / softback, 432 pages, illustrations
  • Išleidimo metai: 01-May-2008
  • Leidėjas: Oregon State University
  • ISBN-10: 0870711970
  • ISBN-13: 9780870711978
Kitos knygos pagal šią temą:
Sedges are key members of many Northwest ecosystems, performing critical roles in wetlands, prairies, savannas, steppes, and forests. They are often the dominant ground cover in flood plains, along stream banks, and in wet meadows and marshes. Their extensive, fibrous root systems prevent erosion by binding soils, while their dense foliage traps sediment, making them critical elements in the restoration of wetland and riparian systems. Field Guide to the Sedges of the Pacific Northwest is the first illustrated guide to all 164 species, subspecies, and varieties in the genus Carex that occur in Oregon and Washington and throughout the Pacific Northwest. Sedges can be challenging to identify with differences between species based on small, technical characters. After nearly fifteen years of research, Oregon botanists of the Carex Working Group have written this comprehensive guide, complete with identification keys, descriptions, color photographs, and distribution maps for each species, providing users with helpful tools and tips for identifying the plants in this challenging group. Information about sedge ecology, habitat management and restoration, ethnobotanical uses, and propagation enhances the guide's utility. The Field Guide provides a comprehensive and essential resource for botanists, land managers, restoration ecologists, and plant enthusiasts. And, as the genus Carex becomes increasingly important amongst landscapers, nurseries, and gardeners, the guide will serve as a handy tool for choosing Northwest natives for the garden.
Acknowledgments 10(2)
Introduction 12(2)
Ecology 14(8)
Ethnobotany 22(2)
Nomenclature and Classification 24(4)
Morphology 28(4)
Sedge Parts (illustrations) 32(2)
How to Use the Identification Key 34(3)
Abbreviations and Symbols 37(2)
Identification Key to Sedges of the Pacific Northwest 39(1)
Inflorescence consisting of a single spike
39(4)
Inflorescence normally entirely staminate
43(1)
Perigynia hairy
44(2)
Kobresia; perigynia open
46(1)
Styles persistent; perigynia ± inflated
46(1)
Stigmas 3; perigynia not hairy; styles deciduous
47(7)
Stigmas 2; terminal spike staminate
54(3)
Stigmas 2; perigynia unwinged; spikes not gynecandrous
57(5)
Stigmas 2; perigynia unwinged; spikes gynecandrous
62(2)
Perigynia winged; mainly section ovales
64(9)
Species Accounts 73(327)
Excluded, Extirpated, and Not (Yet?) Discovered Species 400(5)
Sedges with Distinctive Traits or Habitats 405(5)
Collecting Sedges 410(2)
Ethnonotanical Uses of Pacific Northwest Sedge Species 412(2)
Glossary 414(5)
Illustration Credits 419(1)
References 420(2)
Index 422(10)
Map of the counties of Oregon and Washington 432