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

Back to the Table of Contents
Back to the Arizona Range Grass Descriptions Index Page


SLENDER WHEATGRASS
Elymus trachycaulus (Link) Gould ex Shinners


Description

Growth habit: A moderately coarse perennial bunchgrass. The numerous flowering stems are usually 1 to 3 feet tall and are moderately leafy, particularly near the base of the plant.
Color: Flowers tend to have a violet color which gives stands a green-violet cast. Before flowering both stems and leaves tend to have a slight bluish color.
Leaves: From 2 to 10 inches long, flat or slightly inrolled at the edges, somewhat rough to the touch.
Inflorescence: Two to 8 inches long, slender, usually flattened, often purple in color. Seedheads vary widely in appearance, ranging from slender with spikelets barely overlapping to moderately thick with spikelets moderately overlapping.
Season: Cool Season
Origin: Native


Figure 29.—Slender wheatgrass (Elymus trachycaulus)..

View Larger Image Click Here


Occurrence

In open forests and mountain meadows at elevations from 5,000 to 12,000 feet. Where these conditions occur, slender wheatgrass may be found from Apache to Mohave counties on the north to Cochise and Pima counties on the south.

Forage Value

Slender wheatgrass furnishes good to excellent feed for all classes of livestock and wild ungulates. Because the plants are moderately coarse they are grazed somewhat more readily by elk, cattle and horses than by sheep or deer. Sheep do make good use of the growing leaves, however, taking them about as readily as they do fescues and bluegrasses.


Grazing Management

Slender wheatgrass begins growth as soon as the weather warms up in the spring and, provided moisture is available, continues growth through the summer. It does not withstand as heavy grazing as grasses that produce rootstocks, but will maintain its vigor under moderate grazing more or less indefinitely. Like most grasses, it thrives best under a deferred grazing program that protects the plants during the growing season at periodic intervals. The poorer the condition of the range, the more essential this kind of management becomes.


Back to the Table of Contents
Back to the Arizona Range Grass Descriptions Index Page


The University of Arizona is an Equal Opportunity/Affirmative Action Employer. Any products, services, or organizations that are mentioned, shown, or indirectly implied in this publication do not imply endorsement by the University of Arizona.
Document located http://cals.arizona.edu/pubs/natresources/az1272/
published
2002
Return to College publication list