Page author: David Giblin
Leymus racemosus
mammoth lyme grass, mammoth wildrye

Distribution: Occurring east of the Cascades crest in Washington; central Washington to north-central Oregon, east to Wyoming.

Habitat: Sandy areas in sagebrush flats and plains.

Flowers: July-August

Origin: Introduced from Eurasia

Growth Duration: Perennial

Conservation Status: Not of concern


[none provided]

Accepted Name:
Leymus racemosus (Lam.) Tzvelev
Publication: Bot. Mater. Gerb. Bot. Inst. Komarova Acad. Nauk SSSR 20: 429. 1960. 1960.

Synonyms & Misapplications:
Elymus arenarius L. var. giganteus (Vahl) Schmalh.
Elymus giganteus Vahl [HC]
Elymus racemosus Lam.
Leymus giganteus (Vahl) Pilg.
Additional Resources:

PNW Herbaria: Specimen records of Leymus racemosus in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Leymus racemosus checklist entry.

E-Flora BC: Leymus racemosus atlas page.

CalPhotos: Leymus racemosus photos.

USDA Plants: Leymus racemosus information.

17 photographs:
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