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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PINE DROPSEED
Aristida purpurea Nutt. var. purpurea



Figure 8.—Pine dropseed (Blepharoneuron tricholepis).

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Description

Growth habit: Fine-stemmed perennial bunchgrass 1 1/2 to 2 1/2 feet tall.
Color: Bright green to light gray green.
Leaves: Narrow, usually fine and short.
Inflorescence: Three to 6 inches long, slender, grayish, and loosely flowered.
Season: Warm Season
Origin: Native

 

Occurrence

Apache, Coconino, Mohave, Yavapai, Graham, Gila, Cochise, and Pima counties. This grass commonly grows in ponderosa pine or Douglas fir forests and open meadows at elevations of 6,000 to 10,000 feet. It is sometimes found at lower elevations though rather sparsely.


Forage Value

One of the best forage grasses in timbered areas. Although not as palatable as blue grama, it is considerably more palatable than mountain muhly with which it frequently grows.



Grazing Management

Because pine dropseed grows primarily on high-altitude summer ranges it can be grazed for the most part from July through September. Livestock graze it sparingly when it is dormant. About one third of the seed stalks should be left at the end of the grazing season for seed production and to maintain plant vigor.


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