Switchgrass (Panicum virgatum). Section 7.1.2. US Army Corps of Engineers Wildlife Resources Management Manual

摘要

A plant materials report on witchgrass (Panicum virgatum) is provided as Section 7.1.2 of the US Army Corps of Engineers Wildlilfe Resources Management Manual. The report was prepared as guide to assist the Corps District or project biologist with the selection, cultivation, and management of suitable plant materials for wildlife and habitat development programs. Topics covered include description, distribution, habitat requirements, wildlife value, establishment, maintenance, and cautions and limitations. Switchgrass is a native, perennial, warm-season bunchgrass and is a major component of the Midwestern tallgrass prairie. The seeds, foliage, and stiff upright stems provide food and cover for a variety of wildlife species. Distinguishing characteristics of switchgrass are describedl and the species distribution and region of maximum abundance are given. Soil, moisture, and shade requirements are specified, and common plant associates in tallgrass prairies are listed. Food and cover value for several species of wildlife is discussed. The section on establishment provides guidelines for site selection, site preparation, propagule selection, and planting methods. Recommended planting mixtures are given for several regions. Maintenance requirements and cautions and limitations are discussed.