Muhlenbergiawrightii
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Plant - summer
Mingus Mtn
Sue Smith
Yavapai County Native & Naturalized Plants


Muhlenbergia wrightii - spike muhly

Plant Form:Grass

Family: Poaceae


   
 
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Plant - grazed

Mingus Mtn John Kava
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Plant - fall

Mingus Mtn Sue Smith
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Blades

Mingus Mtn Sue Smith
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Seedhead

Mingus Mtn John Kava
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Seedhead

Mingus Mtn Sue Smith
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Ligule

Mingus Mtn Sue Smith
  Grass Description -   Glossary of Grass Terminology

Origin: Native    Season: Warm
Habitat Description: Grows in gravelly grasslands, on rocky slopes, woodland and forest openings and in dry meadows on granitic, sandstone, or limestone soils.
Plant Communities: Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest
Elevation: 4000 - 9000 feet

General Description

Desc: Loose clumps 1 to 2 feet wide, 1/2 to 2 feet high. Stems wiry looking when mature and dried.
Identification notes: Tufted perennial; clumps to 2 feet wide and tall, wiry stems. Blades flat. Sheaths ridged, smooth, ligule square, membranous. Seedhead dense, narrow, often with gaps of no spikelets. Glumes awn pointed. Lemmas often awn-tipped.
Grass Type: Perennial bunchgrass  Rhizomes: N  Stolons: N
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  Spikelets One-sided: N
Awns: Less than 1/4 inch   Three Awns: N  Awns Bent: N

Flower and Seedhead Notes: Dense spikelike seedheads with appressed branches that are spikelet bearing to the base but often have gaps of no spikelets. Spikelets single flowered, dark green or lead-colored; glumes equal, abruptly narrowed to a sharp point or a very short awn.


Vegetative Characteristics

Blade Hairy: Y  Blade with White Margin: N  Blade Cross Section: Flat or involute  
Blade Notes: Blades up to 5 inches long, folded or rolled inward at the edges, smooth or slightly hairy.
Sheath Hairy: Y  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, and ridged. Ligules are membranous and squarish at the top.

Forage Value: Good.


  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 8.0  
http://cals.arizona.edu/yavapaiplants/SpeciesDetailGrass.php  
Last Updated: Feb 16, 2020  
Content Questions/Comments: Email Jeff Schalau  
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