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


Muhlenbergia wrightii - spike muhly

Plant Form:Grass

Family: Poaceae


   
 
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Plant - grazed
Mahan Park
JK
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Plant - fall
Willow Lake
SS
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Blades
Willow Lake
SS
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Seedhead
Mahan Park
JK
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Seedhead
Willow Lake
SS
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Ligule
Willow Lake
SS
  Grass Description -   Glossary of Grass Terminology

Origin: Native    Season: Warm
Habitat Description: Grows in gravelly prairies, on rocky slopes, woodland and forest openings, and in dry meadows on granitic, sandstone, or limestone-derived soils.
Plant Communities: Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest
Elevation: 5500 - 9000 feet

General Description

Desc: Loose clumps 1-2 feet wide, 1/2-2 feet high. Stems abruptly bent, as at the elbow or knee joint, wiry looking when mature and senesced.
Grass Type: Perennial bunchgrass  Rhizomes: N  Stolons: N
Leaf Arrangement: Leaves basal and erect  Large Dense Clump (> 2 feet): Y  Bushy (highly branched): N
Height with Seedheads: 12 to 24 inches
Seedhead Structure: Branched - contracted  Seedhead Droops: N
Flowering Period: Jul - Oct



Flower Characteristics

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

Flower and Seedhead Notes: Dense spikelike seedheads, often interrupted, gaps between seeds.


Vegetative Characteristics

Blade Hairy: N  Blade with White Margin: N  Blade Cross Section: Folded  
Blade Notes: Blades up to 5 inches long 2mm or less wide, folded or rolled inward at the edges.
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 usually shorter than the internodes, smooth or rough, compressed-keeled, not becoming spirally coiled when old; ligules 1-3(5) mm, membranous, as though abruptly "chopped off".

Forage Value: Good.


  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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