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Aristida schiedeana - single threeawn

Scientific Family
Poaceae
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Cool
Warm

Grows on rocky slopes and plains, generally in pinyon-juniper, oak, or ponderosa pine communities.

Plant Community
Desert Scrub
Interior Chaparral
Montane Conifer Forest
Pinyon Juniper Woodlands
Grasslands
Low elevation
3500
High elevation
7800

General Description

The several stems are attached at the base of the plant and are usually wide spreading.

Awns markedly unequal; the lateral awns are absent or less than 1/2 as long as the central awns. The seedheads are 3 to 12 inches long and 1-1/2 to 10 inches wide and hairy at the base of their branches.

Grass type
Perennial mat or sod-forming
Rhizomes
Yes
Stolons
No
Clump Diameter 2 ft or more
No
Bushy - highly branched
Yes
Height with Seedheads
24 inches or more
Seedhead Structure
Branched - open and spreading
Seedhead droops
Yes
First bloom month
April
Last bloom month
October

Flower Characteristics

Flowers per Spikelet
One-flowered
Spikelets One-Sided
No
Awns
1/4 inch to 1 inch
Three Awns
No
Awns bent
Yes
Flower and Seedhead Notes

Seedheads long and narrow, consisting of many slender branches.

Vegetative Characteristics

Blade is hairy
No
Blade margins white
No
Blade cross-section
Flat

Blades 3 to 12 inches long, 1/8 inch wide, usually flat, often curled at maturity.

Sheath is hairy
No
Tufts of hair top of sheath or collar
Yes
Ligule
Hairy
Auricles
No

Although generally poor forage grasses and, because of the calluses, potentially harmful to grazing animals, they are an important source of spring forage on western range-lands. Quail and small mammals eat small amounts of the seed.