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Pascopyrum smithii Western wheatgrass

Previous scientific name(s): Agropyron molle, Agropyron smithii, Agropyron smithii var. molle, Agropyron smithii var. palmeri, Elymus smithii

Formerly known as Agropyron smithii. Cool season, saline-tolerant, moderately drought tolerant, strongly rhizomatous sod-former. May be replaced by Elymus lanceolatus ssp. lanceolatus on coarser soils. Moderately palatable to livestock and wildlife.

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Species Attributes

Height:

13 - 24 in.

Life Form:

Sodformer

Native or Introduced:

Native

Season:

Cool

Sun & Shade Tolerance:

granite seed sun and shade tolerance icon granite seed sun and shade tolerance icon

Elevation:

ft.

Precipitation:

10 in.

Soil Texture
Coarse:

Not Adapted

Moderately Coarse:

Marginal

Medium:

Average

Moderately Fine:

Best

Fine:

Best

Soil pH
Acidic:

Marginal

Neutral:

Best

Basic:

Best

Seeding Rate:

8 - 16 PLS lbs/Acre

Pure Seed per Bushel:

17.80 lbs.

Seeds per Pound:

110,000

Germination Time:

Days

Mycorrhizal Dependent:

Yes

Planting Season:

Spring Fall

Varieties:

Rosana

Strongly rhizomatous, with excellent seedling vigor. Equal in forage yields to other varieties. Low post-harvest seed dormancy aids in ease of establishment. (Released 1972, source of ecotype: Forsyth, MT)

Variety Release Notes:
AGSM-Rosana_0.pdf
Arriba

Aggressive, with rapid seedling establishment. Produces dense medium height forage. Superior seed yielder. (Released 1973, source of ecotype: Flagler, CO)

Variety Release Notes:
AGSM-Arriba_0.pdf
Barton

A strongly rhizomatous plant producing superior forage yields. Excellent disease resistance. Produces below average seed yields. (Released 1970, source of ecotype: Barton County, KS)

Variety Release Notes:
AGSM-Barton_0.pdf
Rodan

Moderately rhizomatous, thin-leaved plant producing superior forage yields. Well suited for pasture or revegetation. Good disease resistance. Seed yield is comparable to Rosana except with a short awn. (Released 1983, source of ecotype: Morton County, ND)

Variety Release Notes:
Recovery
Variety Release Notes:
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