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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Achnatherum aridum

Achnatherum aridum (M.E. Jones) Barkworth

Mormon Needle Grass, Mormon Needlegrass

Poaceae (Grass family)

Synonym(s): Stipa arida

USDA Symbol: ACAR14

USDA Native Status: L48 (N)


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Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Fruit Type: Caryopsis
Size Notes: Up to about 34 inches tall.

Bloom Information

Bloom Color: Green , Brown
Bloom Time: May , Jun , Jul


USA: AZ , CA , CO , NM , NV , TX , UT
Native Habitat: Rocky outcrops, in dry grasslands and pinyon-juniper woodlands.

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 32 - Grasses of Canada, the U.S., and Mexico - North America north of Mexico (all countries, provinces, states, territories) (2019) Open Herbarium (

Additional resources

USDA: Find Achnatherum aridum in USDA Plants
FNA: Find Achnatherum aridum in the Flora of North America (if available)
Google: Search Google for Achnatherum aridum


Record Modified: 0000-00-00
Research By: CBR

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