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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ORCHARDGRASS
Dactylis glomerata L.


Description

Growth habit: A long-lived perennial bunchgrass sometimes growing in large circular clumps from 1 to 4 feet tall.
Color: From rather dark green in full sunlight to light green in moderate shade.
Leaves: Young leaf blades are sharply folded but open out flat and about 1/8 , to 1/4 inch wide as they mature. Leaf edges when rubbed toward the base have a sandpaperlike feel.
Season: Cool Season
Origin: Introduced


Figure 24.—Orchardgrass (Dactylis glomerata) .

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Occurrence

Used rather commonly as an irrigated pasture grass but also seeded in timbered areas after fire, on logging roads, skid trails and other depleted sites. Usually found at altitudes above 6,500 feet; reported from Navajo, Coconino, Mohave, Graham and Gila counties, but, because of reseeding, may occur elsewhere. More shade tolerant than most grasses.

Forage Value

Highly palatable and producing abundant forage, particularly early in the season. Rated high as a hay or pasture plant, particularly when interplanted with Ladino or some other clover. The grass is particularly preferred by elk.


Grazing Management

Orchardgrass should be moderately grazed, particularly during the spring when it is growing most actively. Although a good forage producer, it will not withstand long-continued heavy use. When irrigated it should be fertilized with nitrogen for maximum production.


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