Arizona Range Grasses
Their Description, Forage Value, and Grazing Management
Cooperative Extension,College of Agriculture & Life Sciences, The University of Arizona

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WESTERN SHEEP FESCUE
Festuca calligera (Piper) Rydberg

 


Figure 40.—Western sheep fescue (Festuca calligera)

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Description

Growth habit: A vigorously growing, many-stemmed, strongly rooted bunchgrass, usually with several erect, slender flower stalks that are commonly 4 to 12, though occasionally as much as 24 inches tall.
Color: Light green to gray-green.
Leaves: Numerous, mostly from the base of the plant; slender, rather wiry, 2 to 5 inches long, rough when rubbed from the top toward the base.
Inflorescence: Two to 4 inches long, usually rather open and somewhat interrupted, generally rather one-sided with ascending side branches.
Season: Cool Season
Origin: Introduced

Occurrence

Sheep fescue occurs in Arizona only in Apache and Coconino counties and at elevations above 7,000 feet. It is particularly abundant in the open parks on the North Kaibab, but tends to be common in similar open park-like areas at high elevations throughout its range. This grass is not particularly shade tolerant and consequently occurs sparsely in timber stands.

 

Forage Value

Sheep fescue produces a bulk of the forage for grazing animals in most areas where it occurs. This is in large part because it usually makes up a large percentage of the vegetation. Although moderately palatable, it does not seem to have the palatability in Arizona that it does in other parts of the West. The leaves are hard and wiry when they mature, a characteristic that undoubtedly affects the degree to which they are grazed. The highly nutritious seedheads, on the other hand, are readily grazed and contribute markedly to the forage value of this grass.

Grazing Management

Sheep fescue stands up better than many grasses under long-continued, moderate grazing. It should not be grazed in the spring until the seedheads begin to show. Stocking levels should permit seed setting on some plants. Ranges where this grass could be dominant should be protected for at least the first half of the growing season and lightly grazed the balance of the summer until conditions improve.


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Document located http://cals.arizona.edu/pubs/natresources/az1272/
published
2002
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