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Agropyron trichophorum <br />pubescent wheatgrass <br />Pubescent wheatgrass is native to Russia and several Near Eastern countries. The <br />species will. tend to form a sod thereby filling in gaps in existing vegetative <br />cover (Plummer, et.al., 1968). The USDA Soil Conservation Service (1977) highly <br />recanmends that pubescent whea[grass be included in a seed mix for Zones III, VII <br />and VIII and rates the palatability of pubescent wheatgrass as fair for all <br />classes of livestock. <br />Bromus inermis <br />smooth brome <br />Smooth brome was introduced from Europe and Asia. Many plantings on mountain <br />ranges in this country are more than 60 years old, probably because this grass is <br />the most widely adapted species on the western ranges. One may distinguish two <br />general types, northern and southern, according to the area and climate of their <br />origin. <br />Some northern types of this brome grow as bunch grass, but most are open sod <br />farmers. Foliage extends cell up into Elower stalks. Northern strains are more <br />productive than southern in the aspen, sub alpine, and alpine ranges (Plummer, <br />1968). <br />In conCrast, the southern types are aggressive sod-formers and develop a tight <br />sod. Leaves are coarse and grow to fairly uniform height. Southern types are <br />better suited to the winter game range areas in Utah, especially the mountain <br />brush and juniper-pinyon types. Lincoln, Achenback, and Fisher are southern <br />strains Eor which seed is available. <br />Smooth brome is especially desirable on brushy range areas because it tolerates <br />shade and can dwarf and open up brush thickets much as intermediate whea[grass <br />does. Consequently, i[ is desirable to plant it with intermediate and fairway <br />crested wheatgrasses in the mountain brush zone. Smooth brome has maintained <br /> <br />3-132 <br /> <br />