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Elymus trachycaulus ssp. trachycaulus

Elymus trachycaulus (Link) Gould ex Shinners ssp. trachycaulus

Slender Wheatgrass

Poaceae (Grass Family)

Synonym(s): Agropyron brevifolium, Agropyron caninum ssp. majus, Agropyron caninum var. andinum, Agropyron caninum var. hornemannii, Agropyron caninum var. mitchellii, Agropyron pauciflorum, Agropyron pauciflorum ssp. majus, Agropyron pauciflorum ssp. novae-angliae, Agropyron pauciflorum ssp. teslinense, Agropyron pauciflorum var. novae-angliae, Agropyron subsecundum var. andinum, Agropyron tenerum, Agropyron teslinense, Agropyron trachycaulum, Agropyron trachycaulum var. majus, Agropyron trachycaulum var. novae-angliae, Agropyron violaceum ssp. andinum, Agropyron violaceum var. andinum, Elymus donianus ssp. virescens, Elymus pauciflorus, Elymus trachycaulus ssp. andinus, Elymus trachycaulus ssp. novae-angliae, Elymus trachycaulus ssp. teslinensis, Elymus trachycaulus var. andinus, Elymus trachycaulus var. majus, Roegneria pauciflora, Roegneria trachycaula, Triticum trachycaulum


USDA Native Status: L48 (N), AK (N), CAN (N), SPM (N)


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Leaf Pubescence: Scabrous
Inflorescence: Spike
Fruit Type: Caryopsis
Size Notes: Up to about 5 feet tall.
Leaf: Green

Bloom Information

Bloom Color: Yellow , Green , Brown
Bloom Time: Apr , May , Jun


USA: AK , AZ , CA , CO , CT , IA , ID , IL , IN , KS , MA , MD , ME , MI , MN , MO , MT , NC , ND , NE , NH , NJ , NM , NV , NY , OH , OR , PA , SD , TX , VA , VT , WA , WI , WV , WY
Canada: AB , BC , MB , NB , NL , NS , NT , ON , PE , QC , SK , YT

Growing Conditions

Water Use: Medium
Light Requirement: Sun
CaCO3 Tolerance: Medium

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Santa Barbara Botanic Garden - Santa Barbara, CA

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Elymus trachycaulus ssp. trachycaulus in USDA Plants
FNA: Find Elymus trachycaulus ssp. trachycaulus in the Flora of North America (if available)
Google: Search Google for Elymus trachycaulus ssp. trachycaulus


Record Modified: 2023-06-05
Research By: TWC Staff

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