Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Achnatherum speciosum (Trin. & Rupr.) Barkworth


Desert needlegrass, Desert rice grass, Spear grass

Poaceae (Grass Family)



Desert rice grass or spear grass is a 1-2 ft., cool-season bunchgrass with an attractive, plumy appearance. The dense seedheads bear spikelets with a distinctive bent or twisted awn extending far beyond the grain.


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Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Leaf: Green
Flower:
Fruit:
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Apr , May

Distribution

USA: AZ , CA , CO , NV , OR , UT
Native Distribution: CO & AZ to s. CA; also Mex.
Native Habitat: Plains; deserts; canyons; rocky hills; 2000-6000 ft.
USDA Native Status: L48(N)

Growing Conditions

Water Use: Low
Light Requirement: Sun
Soil Moisture: Dry
CaCO3 Tolerance: Medium
Soil Description: Rocky or sandy soils.
Conditions Comments: Good for dry banks and paths. Very drought tolerant.

Benefit

Use Food: Seeds gathered and consumed by Mono Lake Paiute people.
Attracts: Butterflies
Larval Host: The Grass Family is an essential larval food for most branded skippers and most of the satyrs.

Last Update: 2008-10-18