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Author: Mary E. Barkworth
Publisher: University Press of Colorado
ISBN: 1457180987
Category : Science
Languages : en
Pages : 1552
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Book Description
Grasses are the world’s most important plants. They are the dominant species over large parts of the earth’s land surface, a fact that is reflected in the many different words that exist for grasslands, words such as prairie, veldt, palouse, and pampas to mention just a few. As a group, grasses are of major ecological importance, as soil binders and providers of shelter and food for wild animals, both large and small. Some grasses, such as wheat, rice, corn, barley, rye, tef, and sugar cane are major sources of calories for humans and their livestock; others, primarily bamboos, are used for construction, tools, paper, and fabric. More recently, the seed catalogs that tantalize gardeners each winter have borne witness to an increasing appreciation of the aesthetic value of grasses. The Manual of Grasses for North America is designed as a successor to the classic volume by Hitchcock and Chase. It reflects current taxonomic thought and includes keys, illustrations, and distribution maps for the nearly 900 native and 400 introduced species that have been found in North America north of Mexico. In addition, it presents keys and illustrations for several species that are known only in cultivation or are of major agricultural significance, either as progenitors of bread wheat and corn or as a major threat to North American agriculture because of their ability to hybridize with crop species. The Manual of Grasses for North America is a major reference work for grasses that will retain its value for many years.
Author: Mary E. Barkworth
Publisher: University Press of Colorado
ISBN: 1457180987
Category : Science
Languages : en
Pages : 1552
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Book Description
Grasses are the world’s most important plants. They are the dominant species over large parts of the earth’s land surface, a fact that is reflected in the many different words that exist for grasslands, words such as prairie, veldt, palouse, and pampas to mention just a few. As a group, grasses are of major ecological importance, as soil binders and providers of shelter and food for wild animals, both large and small. Some grasses, such as wheat, rice, corn, barley, rye, tef, and sugar cane are major sources of calories for humans and their livestock; others, primarily bamboos, are used for construction, tools, paper, and fabric. More recently, the seed catalogs that tantalize gardeners each winter have borne witness to an increasing appreciation of the aesthetic value of grasses. The Manual of Grasses for North America is designed as a successor to the classic volume by Hitchcock and Chase. It reflects current taxonomic thought and includes keys, illustrations, and distribution maps for the nearly 900 native and 400 introduced species that have been found in North America north of Mexico. In addition, it presents keys and illustrations for several species that are known only in cultivation or are of major agricultural significance, either as progenitors of bread wheat and corn or as a major threat to North American agriculture because of their ability to hybridize with crop species. The Manual of Grasses for North America is a major reference work for grasses that will retain its value for many years.
Author: Frances Carnes Weintraub
Publisher:
ISBN:
Category : Grasses
Languages : en
Pages : 84
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Book Description
Author: Sarah Chamberlain
Publisher: Penn State Press
ISBN: 0271081791
Category : Nature
Languages : en
Pages : 355
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Book Description
Grasses are among the most ubiquitous plants on the planet. They inhabit a wide geographic range and are found in a variety of natural habitats. The small parts of the grass flower and specialized terminology, however, can make identifying grasses a challenging endeavor. Sarah Chamberlain’s Field Guide to Grasses of the Mid-Atlantic makes identification simpler for everyone—regardless of their previous botanical knowledge. Featuring an easy-to-use dichotomous key, this is a user-friendly guide to more than 300 types of grasses found from the Blue Ridge Mountains and southern plains to the Appalachians and the Allegheny Plateau. Each major entry contains detailed species diagrams as well as common names, habitats, and distribution. The book’s opening sections outline the parts of grass flowers and describe stem, leaf, and sheath characteristics. With a wealth of illustrations, instructions on how to use the key, and a glossary of terms, Field Guide to Grasses of the Mid-Atlantic is an indispensable reference for naturalists and conservationists, botanists, land management professionals, and students and scholars of mid-Atlantic flora.
Author: Dan Undersander
Publisher: DIANE Publishing
ISBN: 9780788177576
Category : Nature
Languages : en
Pages : 6
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Book Description
Identifies the 15 most common annual & perennial grasses in Midwestern pastures: the predominant seeded Midwestern grasses, the most common native pasture grasses, & a few annual weedy grasses. Helps you identify grasses the first year, when you need to know whether a seeding was successful. Helps you identify grasses in established pastures so you can make informed decisions about pasture mgmt., fencing, & renovation. Chapters: seed & seedling identification for new plantings; vegetative identification for established plants; & info. on growth habit & mgmt. for each of the seeded grasses. Color photos.
Author: Horace L. Leithead
Publisher:
ISBN:
Category : Grasses
Languages : en
Pages : 224
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Book Description
Author: Matthew J. Germino
Publisher: Springer
ISBN: 3319249304
Category : Technology & Engineering
Languages : en
Pages : 475
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Book Description
Invasions by exotic grasses, particularly annuals, rank among the most extensive and intensive ways that humans are contributing to the transformation of the earth’s surface. The problem is particularly notable with a suite of exotic grasses in the Bromus genus in the arid and semiarid regions that dominate the western United States, which extend from the dry basins near the Sierra and Cascade Ranges across the Intermountain Region and Rockies to about 105° longitude. This genus includes approximately 150 species that have a wide range of invasive and non-invasive tendencies in their home ranges and in North America. Bromus species that became invasive upon introduction to North America in the late 1800’s, such as Bromus tectorum and B. rubens, have since became the dominant cover on millions of hectares. Here, millenia of ecosystem development led to landscapes that would otherwise be dominated by perennial shrubs, herbs, and biotic soil crusts that were able to persist in spite of variable and scarce precipitation. This native ecosystem resilience is increasingly coveted by land owners and managers as more hectares lose their resistance to Bromus grasses and similar exotics and as climate, land use, and disturbance-regime changes are also superimposed. Managers are increasingly challenged to glean basic services from these ecosystems as they become invaded. Exotic annual grasses reduce wildlife and livestock carrying capacity and increase the frequency and extent of wildfi res and associated soil erosion. This book uses a unique ecoregional and multidisciplinary approach to evaluate the invasiveness, impacts, and management of the large Bromus genus. Students, researchers, and practitioners interested in Bromus specifically and invasive exotics in general will benefit from the depth of knowledge summarized in the book.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 516
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Book Description
Author: Albert Spear Hitchcock
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 342
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 452
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Book Description
Author: Albert Spear Hitchcock
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 448
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Book Description
