Grasses and Forbes; Leymus cinereus
SPECIES | Leymus cinereus |
Common name and alpha code | basin wildrye LECI (was Elymus cinereus); also Giant wildrye 212 |
General Information | Perennial cool season bunchgrass 61 Reproduction by tillers as will as seed 75; scattered and infrequent at low to mid elevations; in grasslands, open forests and open areas where sub-surface moisture is present 212 |
TABLE: | SEED |
Seeds/Lb.
|
95,000 61 ; 150,000 155 to 166,000 seed/Lb.; 3.0 seeds/sq. ft/Lb. 134
In ref. #33: 95,000/lb (Vallentine, 1971) 130,760/lb (Plummer et al., 1968) 166,000/lb (Stefferud, 1948) |
Germ % |
In ref. #33: 83% (Stefferud, 1948)
Seed fill may be very low in native stands. 145 |
Germ Test Amt | |
Germ Test Cost | |
Purity % | |
Purity Test Amt | |
Purity Test Cost | |
Germination Pretreatment Requirement |
None 145
In ref. #33: STRATIFICATION: Prechill at 2°C for 16 weeks in 10-3 M GA3 (McDonough, 1969) LABORATORY GERMINATION: MOISTURE: Lower Limit: 4.5 atm Seed commonly exhibits post-harvest dormancy. Use seed that has been stored more than 12 months to avoid this. 209 |
Seed Processing Needed e.g. awns | In ref. #33: METHOD OF CLEANING: Dry, chop and fan (Plummer et al., 1968) |
Storage
Requirements |
Cool, dry 209 |
Storage
Length (Years) |
|
Maturity Date | In ref. #33: Oct 1-Nov 5 (Plummer et al., 1968); Early July at lower elevations July 15-Sep 1 at higher elevations (Sampson, 1924) |
Pollinators Seed Dispersal Mechanism | |
Breeding: self; Cross; Asexual Reproduction | |
Disease Problems | |
Insect Predation | |
Hand Collection Methods, Problems, and Cost/Lb. | |
TABLE: | SEED INCREASE INFO |
Sow Rate for Seed Increase Plantation, Lb./Acre | |
1st Year Yield, Lb./acre | |
2nd Year Yield, Lb./acre | |
Field Life Span: Years | |
Production Cost/Lb. | |
Field Distance Requirements | |
Sow Rate | |
Miscellaneous Increase Info | |
TABLE: | HABITAT |
Plant Association Groups | |
Drought Tolerance |
Fair 61; high 34
In ref. #33: SOIL MOISTURE: Adapted to moist or wet soils (Wheeler & Hill, 1957; USDA, For. Ser., 1937); Moderately dry to moist or wet (Donohue et al., 1956) |
Soil: Texture, Chemicals |
Medium to clayey textures; not for sandy or acidic soils. 34 Common on alkali soils 61 Tolerates salt also 155
In ref. #33: SOIL TEXTURE: Silty-good, Clayey-good, sandy-poor (Vallentine, 1971) SOIL pH: Adapted to alkali soils (Hafenrichter et al., 1968; Wheeler & Hill, 1957) |
Soil Depth | Not for shallow sites 155 |
Ave. Precip. Needs | 15 to 25 in. 75; 11 to 20 134 ; minimum 8 in. 34 |
Flooding or High Water Tolerance | Fair to good 61, 34 |
Soil Stabilization | Use for erosion control 61; fair seedling vigor, relatively slow to establish 134; excellent soil binder 34 |
Palatability and Attractiveness to Animals; Response to Grazing | Poor to moderate; low tolerance to close grazing (decreaser) 61 and to spring grazing 134 Good forage for cattle, fair for sheep 75 Good cover for upland game birds 155 |
Elevation Range | |
Competitiveness | |
Plasticity | |
Root System: Rhizomes, Stolons, etc. | Roots fibrous 75, extensive 134; often spreads by short rhizomes. 34 Has short, thick, knotted rhizomes 164 |
Shade Tolerance | Moderate 61 |
TABLE: | CONSERVATION SOWING ON N.F. SITES |
WCF Cost/Lb. (1997) | $177 to $197 73 |
Sow Rate for. Sowing on National Forest Sites, Lb./Acre | 7 to 9 Lb./acre (mechanical drilling) 134 9 34 |
Sowing Method and Date |
Fall or spring 34
In ref. #33: PLANTING DEPTH: 1" (Archer & Bunch, 1953; Hoover et al., 1948, Flory & Marshall, 1942) PLANTING TIME: Spring on areas flooded by spring runoff (Hafenrichter et al., 1968) Fall (Plummer et al., 1955) |
Miscellaneous |