Plant Image
Plant - summer
Mingus Mtn - Yeager Cyn
SS
Yavapai County Native & Naturalized Plants


Muhlenbergia emersleyi - bullgrass

Plant Form:Grass

Family: Poaceae


   
 
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Plant - fall
Little Thumb Butte
SS
Plant image
Blade
Willow Dells Tr
SS
Plant image
Spikelets
Willow Dells Tr
SS
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Seedhead
Mingus Mtn - Yeager Cyn
SS
Plant image
Seedhead
Mingus Mtn - Yeager Cyn
SS
Plant image
Ligule
Willow Dells Tr
SS
  Grass Description -   Glossary of Grass Terminology

Origin: Native    Season: Warm
Habitat Description: Rocky slopes and ledges and forest openings, mostly in dry soil.
Plant Communities: Interior Chaparral, Pinyon Juniper Woodland, Montane Conifer Forest
Elevation: 3500 - 6500 feet

General Description

Desc: Large clump with a hard, knotty base. Tall often over 3 feet, large contracted seedhead. Ligules long thin, often frayed.
Grass Type: Perennial bunchgrass  Rhizomes: N  Stolons: N
Leaf Arrangement: Leaves basal and drooping  Large Dense Clump (> 2 feet): Y  Bushy (highly branched): N
Height with Seedheads: Greater than 36 inches
Seedhead Structure: Branched - contracted  Seedhead Droops: N
Flowering Period: Jun - Nov



Flower Characteristics

Number of Flowers per Spikelet: One-flowered  Spikelet Arrangement: All around branches
Awns: 1/4 inch to 1 inch   Three Awns: N  Awns Bent: N

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 1-2 cm.


Vegetative Characteristics

Blade Hairy: N  Blade with White Margin: N  Blade Cross Section: Flat or folded  
Blade Notes: 1-4 mm wide, 10-50 cm long. Blades 8-20 inches long, 2-6 mm wide, flat or folded, roughened with stout projections below, smooth or slightly rough above.
Sheath Hairy: N  Tuft of Hairs Top of Sheath or Collar: N  Ligules: Membranous
Auricles (Ear-like lobes at base of blades): N
Vegetative Notes: Sheaths shorter or longer than the internodes, smooth or clothed with soft hairs or down, basal sheaths laterally compressed, usually keeled; ligules 10-25 mm, membranous throughout, pointed, torn or irregularly cleft.

Forage Value: Poor due to coarseness.


  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 3.1  
http://prescottnatives.com/SpeciesDetailGrass.php  
Last Updated: June 15, 2013  
Content Questions/Comments: Email Jeff Schalau  
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