Details for: PI 434040, Leymus triticoides (Buckley) Pilg., 'Shoshone'


Summary Data
Taxonomy:
Leymus triticoides (Buckley) Pilg.
Cultivar:
'Shoshone'
Origin:
Collected – Wyoming, United States
Received by NPGS:
Mar 1979
PI Assigned:
1979
Improvement Status:
Cultivar
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Availability
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Seed100 countPI 434040 2022i SD
 
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Core Passport Data
Taxonomy:
Leymus triticoides (Buckley) Pilg.
Cultivar:
'Shoshone'
Origin:
Collected – Wyoming, United States
Received by NPGS:
Mar 1979
PI Assigned:
1979
Improvement Status:
Cultivar
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Source History
Collected

Wyoming, United States
Locality: Saline area along the Wind River, southern outskirts of Riverton

Donated
March 1979.
Mississippi, United States

Donor(s):
Accession Group(s)
Group name: NRCS Conservation Plant Releases
Note: These are accessions released by the USDA-NRCS Plant Materials Centers. Accessions may represent germplasm that is of wild origin and has not been altered; germplasm that is of wild origin but developed (F1 or F2) by utilizing numerous germplasms from across a similar ecoregion; or germplasm of cultivated origin. Releases are selections with superior performance.
To search for accessions in this group, click the following link. NRCS Conservation Plant Releases

Accession Names and Identifiers
'Shoshone'
Type: Cultivar name

P 15594
Type: Other or unclassified name

Narrative
Shoshone beardless wildrye is a strongly rhizomatous, perennial grass adapted to wet, saline soil conditions. The rhizomes are covered with a dark brown papery coating, with few root hairs between root nodes. Once established either by seeding or sprigging, Shoshone is capable of spreading into even stronger saline soils. The hard seed coat, in part, creates both a physical and physiological seed dormancy, requiring that the seed be planted only in the late fall or winter. Wet, cold conditions are necessary to trigger germination. Shoshone has a shorter stature of 60-100 cm and is leafier than the native beardless wild rye. The majority of the leaves are basal or low on the seed-bearing culm. Leaves are light green to a yellowish-green. The seed-head of Shoshone are more compact with much shorter lemma awns. The seed of Shoshone does not shatter when mature, allowing direct-cut combining of seed. Shoshone has approximately 400 seeds per gram.
Leymus triticoides (Buckley) Pilg.
Genus:
Leymus
Family:
Poaceae (alt. Gramineae)
Subfamily:
Pooideae
Tribe:
Triticeae
Nomen number:

102173
Place of publication:

Bot. Jahrb. Syst. 74:6. 1947
Verified:
11/02/2007 by ARS Systematic Botanists.
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Basionym
Elymus triticoides Buckley

Homotypic Synonym(s)
Elymus triticoides Buckley subsp. triticoides

Common names
LanguageNameAlternate namenoteseqCitation
Englishbeardless wild rye  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Englishcreeping wild rye  1Welsh, S. L. et al. 1993. A Utah flora. Note: = Elymus triticoides Buckley
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Pedigree
Description:
Shoshone beardless wildrye was directly increased without selection and released as a cultivar. The germplasm was originally collected from a saline area along the Wind River on the southern outskirts of Riverton, Wyoming. Although beardless wildrye, Leymus trititcoides is a native, it was later to be identified as Leymus multicaulus which has an Asian origin. A Shoshone Breeders Block has been maintained vegetatively at the Bridger PMC since its release in 1980. Foundation seed is produced at the Bridger PMC for distribution to commercial seed growers. Both Registered and Certified seed is recognized.