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Achnatherum robustum (Sleepygrass)
Wasowski, Sally and Andy

Achnatherum robustum

Achnatherum robustum (Vasey) Barkworth


Poaceae (Grass Family)

Synonym(s): Stipa robusta, Stipa vaseyi

USDA Symbol: ACRO7

USDA Native Status: L48 (N)


From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Retention: Evergreen
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Leaf Pubescence: Glabrous
Breeding System: Flowers Bisexual
Inflorescence: Panicle , Spikelet
Fruit Type: Caryopsis
Size Notes: Up to about 7 feet tall.

Bloom Information

Bloom Color: White , Green
Bloom Time: Jun , Jul , Aug , Sep


USA: AZ , CO , NM , WY

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

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


Record Modified: 2022-09-28
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