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Muhlenbergia emersleyi - bullgrass

Scientific Family
Poaceae
Synonyms
Muhlenbergia gooddingii
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Warm

Rocky slopes and ledges, forest openings, mostly in dry soil.

Plant Community
Montane Conifer Forest
Pinyon Juniper Woodlands
Low elevation
3500
High elevation
6500
Similar species
Muhlenbergia rigens, M. longiligula

General Description

Large clump with a hard, knotty base. Tall often over 3 feet; large contracted seedhead. Ligules long thin, often frayed.

Tufted, 2 to 4 feet tall perennial, erect stems in large clumps; seedheads loose, branches naked at the base; blades more than 3 inches long; sheaths without hairs. M. rigens has contracted seedhheads and M. longiligula hairy florets.

Grass type
Perennial bunchgrass
Rhizomes
No
Stolons
No
Clump Diameter 2 ft or more
Yes
Bushy - highly branched
No
Height with Seedheads
Greater than 36 inches
Seedhead Structure
Branched - contracted
Seedhead droops
No
First bloom month
June
Last bloom month
November

Flower Characteristics

Flowers per Spikelet
One-flowered
Spikelets One-Sided
No
Awns
1/4 inch to 1 inch
Three Awns
No
Awns bent
No
Flower and Seedhead Notes

Seedhead usually dense and contracted, erect or nodding, branches rather long but never wide-spreading, naked towards the base. Glumes awnless, lemmas hairy at the base and usually with an awn of less than 1/16 inch.

Vegetative Characteristics

Blade is hairy
No
Blade margins white
No
Blade cross-section
Flat
Folded

Blades 1/16 to 1/4 inch wide, 8 to 20 inches long, flat or folded, roughened with stout projections below, smooth or slightly rough above.

Sheath is hairy
No
Tufts of hair top of sheath or collar
No
Ligule
Membranous
Auricles
No

Poor due to coarseness.